Talks

Featured: a public lecture

The Negative Triangularity Tokamak: Power Handling in a Fusion Power Plant, CU Boulder Saturday Physics Series (2024). A non-specialist introduction to fusion and to how plasma shape changes the heat-exhaust problem.

Invited Talks

(Slides available upon reasonable request)

Nelson, A. O. Separatrix Shape Dependence of the H-mode Power Threshold, Confinement Quality, and ELM Type in 20th International Workshop on H-mode Physics and Transport Barriers (2026).
Nelson, A. O. The Negative Triangularity Edge in Physics World Webinar: Negative triangularity tokamaks: a power plant plasma solution from the core to the edge? (2024).
Nelson, A. O. The Negative Triangularity Tokamak: Ensuring Robust Access to a High-Performance, ELM-Free Fusion Power Plant in Symposium on Plasma And Nuclear Systems (SPANS-2024) (Ontario, Canada, 2024).
Nelson, A. O. Robust avoidance of edge localized modes alongside pedestal formation in negative triangularity plasmas in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Nelson, A. O., Austin, M. E., Boyes, W., Casali, L., Chrystal, C., Cote, T., Du, X., Eldon, D., Ernst, D., Khabanov, F. O., Kramer, G., Lunia, P., Marinoni, A., Mattes, R., McKee, G., Mordijck, S., Paz-Soldan, C., Schmitz, L., Scott, S., Stewart, S., Thome, K. E., Welsh, A., Wilson, H. S. & Zhao, M. Initial Experimental Results from the DIII-D Negative Triangularity Campaign in 2nd International Fusion and Plasma Conference (Busan, Korea, 2023).
Nelson, A. O., Schmitz, L., Cote, T., Paz-Soldan, C., Leuthold, N., Thome, K. E., Austin, M. E., Yu, G., Kramer, G. & Stewart, S. Robust avoidance of peeling-ballooning instabilities through gradient reduction in the negative triangularity edge in 2023 US Transport Task Force Workshop (2023).
Nelson, A. O. H-mode Inhibition in Negative Triangularity Tokamak Reactors (Topical Plenary) in 6th Asia-Pacific Conference on Plasma Physics (2022).
Nelson, A. O. Experimental identification of inter-ELM pedestal MTMs through edge current perturbations in 2021 US Transport Task Force Workshop (2021).
Nelson, A. O., Haye, R. J. L., Austin, M. E., Welander, A. S. & Kolemen, E. ECE-based Tearing Mode Suppression and Equilibrium Reconstruction in 24th Workshop on MHD Stability Control (2019).

Invited Lectures and Seminars

(Slides available upon reasonable request)

Nelson, A. O. Fusion Energy 101 in Colorado Fusion Week (2026).
Nelson, A. O. Introduction to Fusion Energy in National Laboratory of the Rockies Seminar Series (2026).
Nelson, A. O. Introducing the Fusion Simulator and Other Open Source Tools for Fusion Energy Pedagogy in PlasmaNET Workshop (2026).
Nelson, A. O. Flipping the Shape of Plasmas to Solve the Tokamak Heat-Flux Problem in CIPS Seminar at CU Boulder (2026).
Nelson, A. O. Applied Plasma Physics: The Magnetic Pursuit of Fusion Energy in CIPS Seminar at CU Boulder (2026).
Nelson, A. O. Design and Optimization of Tokamaks for Fusion Energy in Energy Frontier Seminars at the Institute of Renewable Energies in Mexico (2026).
Nelson, A. O. Using Magnets to Build a Star on Earth in Caltech Astronomy on Tap (2025).
Nelson, A. O. The Negative Triangularity Tokamak: Power Handling in a Fusion Power Plant in CU Boulder Saturday Physics Series (2024).
Nelson, A. O. The Negative Triangularity Tokamak: Ensuring Robust Access to a High-Performance, ELM-Free Fusion Power Plant in UCI Physics Seminar Series (2024).
Nelson, A. O. Plasma Waves in Princeton Plasma Physics Laboratory Introduction to Fusion Energy and Plasma Physics Course (2023).
Nelson, A. O. Negative Triangularity: The Holy Grail for Tokamak Core-Edge Integration? in UCLA Plasma Science and Technology Institute Seminar Series (2023).
Nelson, A. O. A practical introduction to the H-mode pedestal: ELMs and ELM-free regimes in Fusion-EP Seminar Series (2020).
Nelson, A. O. Introduction to Outstanding Problems in Magnetic Confinement Fusion in APS-DPP Student Day (2020).

Conference Contributions

2026

Abrams, T., Effenberg, F., Barr, J., Coburn, J., Du, X., Ernst, D., Garofalo, A., Groth, M., Herfindal, J., Hong, S.-H., McLean, A., Nelson, A. O., Ren, J., Scotti, F., Wilcox, R., Yu, J., Zimmerman, B., Buttery, R., Cometa, F., Murphy, C., Petty, C. & Schultz, K. Advancing Fusion Pilot Plant Readiness through the Tungsten Wall Transition on DIII-D in 27th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (2026).
Angles, T., Nelson, A. O., Sheehan, F., Guizzo, S., Lhota, J., Zimmermann, C. F. B., Paz-Soldan, C., Fujita, T. & Ibano, K. Validation of TokaMaker+TORAX for Pulse Simulations of the FAST Tokamak in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Benjamin, S., Burgess, D., Keith, Z., Chandra, R., Tobin, M., Nelson, A. O., Odstrcil, T., Marmar, E. & Rea, C. Towards uncertainty-aware, general m,n Rutherford equation-based tearing onset predictors in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Burgess, D., Logan, N., Nelson, A. O., Brennan, D., Shi, N., Odstrcil, T., Park, J. & Paz-Soldan, C. Empirical Validation of Slab Model Classical Tearing Stability Predictions in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Chiriboga, J., Logan, N., Nelson, A. O., Paz-Soldan, C. & Leuthold, N. Characterization of the pedestal density threshold of RMP ELM suppressed plasmas in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Clavijo, K., Paz-Soldan, C., Burgess, D. & Nelson, A. O. Peeling-Ballooning Stability Computation for Arbitrary H-mode Plasmas in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Dunsmore, J., Hughes, J., Saarelma, S., Schellpfeffer, J., Leuthold, N., Nelson, A. O., Miller, M., Brown, N., Gerru Miguelanez, R., Han, J., Horvath, L., Mordijck, S., Wilks, T. & Howard, N. Density pedestal predictions in EDA and QCE H-mode, and projections for SPARC in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Ebrahimi, F., King, J., Cote, T., Nelson, A. O., Leuthold, N., Dominguez-Palacios, J. & Thome, K. Understanding ELM-Free Negative Triangularity regime using multi-species extended MHD model and the CETOP project in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Ebrahimi, F., King, J., Cote, T., Nelson, A. O., Leuthold, N., Dominguez-Palacios, J., Thome, K. E. & Paz-Soldan, C. Multi-species extended MHD simulations of ELM-free negative triangularity DIII-D plasmas in Sherwood 2026 Conference (2026).
Epstein, E., Zimmermann, C. F. B., Chrystal, C., Leuthold, N. & Nelson, A. O. Core differential rotation studies in DIII-D torque-free scenarios in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Ghiozzi, A., Zimmermann, C. F. B., Cohen, J., Nelson, A. O. & Paz Soldan, C. Self-consistent core scenario design of a compact low-power tokamak in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Hansen, C., Braun, A., Burgess, D., Guizzo, S., Johnson, C., Maris, A., Nelson, A. O., Pharr, M., Sheehan, F., Wang, T. & Paz-Soldan, C. The Open FUSION Toolkit: An open-source suite of fusion modeling tools for engineering, analysis, and education in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Hibbard, G., Ho, A., Sheehan, F., Nelson, A. O., Rodriguez-Fernandez, P. & Howard, N. Investigating q-Profile Tailoring Through Trajectory Optimization for Improving Performance in ARC-like Tokamaks in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Keith, Z., Wang, A., Nelson, A. O., Pau, A., Barr, J., Trevisan, G. L., Wei, W. & Rea, C. Comparing Hybird Physics Models for Full-Shot Transport Prediction in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Kumar, A., Nelson, A. O., Damsell, A., Clauser, C., Golfinopoulos, T. & Hilesheim, J. Active Magnetic Control Simulations of Vertical Stability Coils for ARC-class Equilibria in 30th Workshop on MHD Stability Control (2026).
Labbate, J., Nelson, A. O., Paz-Soldan, C., Sheehan, F. & Nurgaliev, M. A predictive reduced model for the tokamak pedestal with extensions to ELM-free regimes in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Lee, S., Lee, J., Nelson, A. O., Paz-Soldan, C. & Park, J. Geometric Decomposition of Perturbed Potential Energy using Bernstein-Chance Form of Ideal-MHD Energy Principle in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Leuthold, N., Li, Z., Faitsch, M., Hyatt, A., Zimmermann, C. F. B., Chrystal, C., Gerru Miguelanez, R., Gil, L., Guizzo, S., Hood, R., Huse, L., Kim, S., Lasnier, C., Logan, N., Nelson, A. O., Odstrcil, T., Osborne, T., Paz-Soldan, C., Perillo, R., Victor, B. & Wilks, T. Overview of Enhanced D-alpha and Quasi-Continuous Exhaust H-modes at DIII-D in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Leuthold, N., Li, Z., Faitsch, M., Hyatt, A., Zimmermann, C. F. B., Chrystal, C., Gil, L., Hood, R., Huse, L., Kim, S. K., Lasnier, C. J., Logan, N. C., Nelson, A. O., Osborne, T., Paz-Soldan, C., Perillo, R., Victor, B. & Wilks, T. Overview of Enhanced D-alpha and Quasi-Continuous Exhaust H-modes at DIII-D in 30th Workshop on MHD Stability Control (2026).
Li, Z., Chen, X., Wang, H., Leuthold, N., Nelson, A. O., Odstrcil, T., Osborne, T., Xu, X. & Li, N. Access conditions and filamentary exhaust of small-ELM regimes in DIII-D in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Logan, N., Leuthold, N., Sweeney, R., Hillesheim, J., Myers, C., Burgess, D., Braun, A., Benjamin, S., Nelson, A. O., Hansen, C., Kumar, A., Zimmermann, C. F. B., Snyder, P., Lyons, B., Creely, A. & Paz-Soldan, C. Recent Advances in the MHD and Disruption Physics Basis for ARC in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Lyons, B., Battaglia, D., Body, T., LeViness, A., Redl, A., Snyder, P., Teplukhina, A., Veldhoen, M., Wai, J., Bodenstein, S., Citrin, J., Norman, T., Tracey, B., Burgess, D., Logan, N., Nelson, A. O., Carpanese, F., Ho, A., Howard, N. & Rodriguez-Fernandez, P. Integrated Modeling of the SPARC Q>1 Campaign in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Lyons, S., McClenaghan, J., Nelson, A. O., Neiser, T., Slendebroek, T. & Orlov, D. Assessing Near-Edge Gradient Limits in Negative Triangularity Plasmas with QLGYRO and NIMROD in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Nelson, A. O., Diem, S. & Dominguez, A. Fusion Energy Week: A Global Event for Public Engagement and Workforce Development in IAEA Technical Meeting on Developing the Fusion Workforce (2026).
Nelson, A. O., Odstrcil, T., Leuthold, N., Denk, S., Zimmermann, C. F. B., Li, Z., Slendebroek, T., Schellpfeffer, J., Dunsmore, J., Burgess, D., Labbate, J., Wilks, T., Chen, X., Nazikian, R. & Paz-Soldan, C. Integrated Validation of Edge Physics Models and Analysis Workflows for Fusion Pilot Plant Design in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Pajares, A., Al Khawaldeh, H., Pederson, T., Graber, V., Paruchuri, S. T., Schuster, E., Shiraki, D., Turco, F., Nelson, A. O., Juhn, J., Park, S., Kudlacek, O., Pastore, F., Mele, A., Sauter, O., Baruzzo, M. & Tala, T. Machine-Agnostic, Model-Based Density Control for ITER and Fusion Pilot Plants in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Peña-Arevalo, D., Cano-Megias, P., Viezzer, E., Saarelma, S., Puentes-del-Pozo, F., Rodriguez-Gonzalez, A., Vincent, C., Sauter, O., Anand, H., Casali, L., Chapman, B., Nelson, A. O., Ryan, D., Scannell, R. & Velarde, L. Pedestal Modelling of Negative Triangularity Scenarios in MAST-U and Implications for SMART in 23rd International Spherical Torus Workshop (2026).
Rodriguez-Gonzalez, A., Cano-Megias, P., Viezzer, E., Puentes-del-Pozo, F., Peña-Arevalo, D., Vincent, C., Sauter, O., Anand, H., Casali, L., Nelson, A. O. & Ryan, D. Transport Analysis of Negative Triangularity Scenarios in MAST-U and Comparison with SMART in 23rd International Spherical Torus Workshop (2026).
Schellpfeffer, J., Burke, W., Conway, G., Dunsmore, J., Faitsch, M., Gil, L., Hughes, J., Leuthold, N., Nelson, A. O., Vanovac, B., Yoo, C. & White, A. A multi-device comparison of nonlinear signatures from the QCM in the EDA and QCE H-modes in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Sheehan, F., Lhota, J., Nelson, A. O., Labbate, J., Hansen, C., Yilmaz, D. & Paz-Soldan, C. TokaMaker+TORAX: A fully open-source predictive tokamak pulse design workflow in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Sheehan, F., Nelson, A. O., Lhota, J., Hansen, C., Hillesheim, J., Lyons, B., Teplukhina, A. & Paz-Soldan, C. ARC full-pulse design study using open-source TokaMaker+TORAX workflow in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Stewart, S., McKee, G., Thome, K., Cote, T., Geiger, B., Hyatt, A., Khabanov, F., Marinoni, A., Nelson, A. O., Schmitz, L., Scotti, F. & Yan, Z. Experimental Investigation of Turbulence Properties and Saturation Mechanisms in the Negative Triangularity Edge at DIII-D in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Thome, K. E., Akcay, C., Anand, H., Bechtel Amara, T. A., Berkery, J., Bodner, G., Candy, J., Gerhardt, S. P., Halpern, F. D., Harrison, J. R., Henderson, S., Imada, K., Kaye, S., Knolker, M., Kochan, M., Liu, Y. Q., Logan, N. C., Lvovskiy, A., McArdle, G., McClenaghan, J., Munaretto, S., Neiser, T. F., Nelson, A. O., Osborne, T. H., Pajares, A., Saarelma, S., Vincent, C., Welander, A., Xing, Z. A., Yang, J. & the MAST-U and NSTX-U Teams Progress Toward a Stationary High-Confinement Spherical Tokamak Scenario via Experiment and Modeling on MAST-U and NSTX-U in 23rd International Spherical Torus Workshop (2026).
Vanovac, B., Hobirk, J., Dunne, M., Nelson, A. O., Faitsch, M., Sauter, O., Thome, K., Hyatt, A., Scotti, F., Mantica, P. & White, A. ELM suppression mechanisms and confinement properties in negative triangularity in ASDEX Upgrade in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Vanovac, B., Hobirk, J., Nelson, A. O., Sauter, O., Dunne, M., Faitsch, M., Pütterich, T., Fischer, R., Stieglitz, D., Strumberger, E., Liu, X., Grover, O., Kappatou, A., Takacs, R., Mantica, P. & White, A. E. Negative triangularity research in ASDEX Upgrade in 10th Asia-Pacific Conference on Plasma Physics (2026).
Vincent, C., Lvovskiy, A., Casali, L., di Grazia, L., Anand, H., Nelson, A. O., Harrison, J. R., Flesch, K. B., Federici, F., Viezzer, E., Cano-Megias, P., Rodriguez-Gonzalez, A., Puentes, F., Pena, D. & Sauter, O. Control Development of the Negative Triangularity Scenario for MAST-U in 23rd International Spherical Torus Workshop (2026).
Waller, M., Michoski, C., Hatch, D., Kuang, D., Holland, C., McClenaghan, J., Schmidt, J., Ho, A., Patel, B., Li, Z., Myers, R., Sammuli, B., Orozco, D., Nakkina, T., Chen, X., Odstrcil, T., Nelson, A. O., Olofsson, E., Clark, M. & Nazikian, R. From Curation to Discovery: ML-Ready Data Infrastructure for Fusion Experiments and Simulations in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Wilcox, R., Park, J. M., Anastopoulos Tzanis, M. S., Kim, K., Park, J., Choi, W., Eldon, D., Hood, R., Hyatt, A., Kwon, K., Maurizio, R., Nelson, A. O., Ronchi, G., Scotti, F., Shafer, M., Tsui, C. & Wilks, T. Pedestal performance with detachment in the DIII-D SVR divertor: integrated modeling simulation predictions and experiments in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Wilks, T. M., Osborne, T., Hu, Q., Ernst, D., Snyder, P. B., Knolker, M., Wilcox, R., Eldon, D., Gerru, R., Fleishhacker, J., Gorno, S., Holcomb, C., Holm, A., Hubbard, A., Kim, K., Ma, X., Nelson, A. O., Shafer, M., Shiraki, D., Turco, F. & Wang, H. Record H-mode pedestal pressure in high triangularity, high elongation discharges leveraging the new “Shape and Volume Rise” divertor on DIII-D in 2026 Joint US-EU Transport Task Force Workshop (2026).
Wilson, H., Nelson, A. O., Park, J. M., Hassan, E., Collins, C. & Paz-Soldan, C. Exploring heating and current drive in MANTA, a high-field negative-triangularity fusion pilot plant in 68th Annual Meeting of the APS Division of Plasma Physics (2026).
Zimmermann, C. F. B., Bursch, E., Paz-Soldan, C., Hanson, J., Leuthold, N., Logan, N. & Nelson, A. O. Assessing the effect of error field penetration during plasma current ramp-up in the DIII-D tokamak in 30th Workshop on MHD Stability Control (2026).

2025

Austin, M. E., Chrystal, C., Liu, L., Nelson, A. O., Paz-Soldan, C. & Thome, K. E. Contrasting negative triangularity discharges with H-mode scenarios in DIII-D in 67th Annual Meeting of the APS Division of Plasma Physics (2025).
Balbin-Arias, J., Mordijck, S., Shiraki, D., Wilks, T. M., Osborne, T., Nelson, A. O., Haskey, S., Yang, Z., Loughran, J., Odstrcil, T., Bortolon, A., Horvath, L., Gerru, R., Wang, H., Marini, C. & Gorno, S. Impact of Neutral Opaqueness on Fueling Efficiency in low-collisionality H-mode DIII-D discharges in 67th Annual Meeting of the APS Division of Plasma Physics (2025).
Balbin-Arias, J., Wilks, T., Osborne, T., Mordijck, S., Nelson, A. O., Odstrcil, T., Hughes, J. W., Gerru, R., Horvath, L. & Bortolon, A. Fueling Evolution around the access to the Super H-mode Channel in Shape and Volume Rise (SVR) plasmas in DIII-D in 2025 US Transport Task Force Workshop (2025).
Boguski, J., Sweeney, R., Braun, A., Nelson, A. O., Paz-Soldan, C. & Riccardo, V. Operational Outlook for SPARC REMC in 67th Annual Meeting of the APS Division of Plasma Physics (2025).
Cao, N., Hatch, D. R., Michoski, C., Oliver, T. A., Eldon, D., Nelson, A. O. & Waller, M. Quantifying Resolution Limits in Pedestal Profile Measurements with Gaussian Process Regression in 67th Annual Meeting of the APS Division of Plasma Physics (2025).
Cao, N. M., Hatch, D., Michoski, C., Oliver, T. A., Eldon, D., Nelson, A. O. & Walter, M. Quantifying Resolution Limits in Pedestal Profile Measurements with Gaussian Process Regression in 2025 US Transport Task Force Workshop (2025).
Dominguez-Palacios, J., King, J. R., Izzo, V., Chen, X., Pankin, A., Ebrahimi, F. & Nelson, A. O. Multispecies collisional effects on linear MHD stability of Wide Pedestal Quiescent H-mode DIII-D plasmas in 67th Annual Meeting of the APS Division of Plasma Physics (2025).
Dominguez-Palacios, J., King, J. R., Izzo, V., Chen, X., Pankin, A., Ebrahimi, F. & Nelson, A. O. Full-extended MHD simulations of QH-mode DIII-D plasmas including particle collisional effects in 2025 US Transport Task Force Workshop (2025).
Ebrahimi, F., Cote, T. B., King, J., Nelson, A. O., Leuthold, N., Yu, G. & Paz-Soldan, C. Extended MHD studies of mELM-free negative triangularity plasmas in DIII-D and the CETOP SciDAC-5 project in 2025 Sherwood Fusion Theory Conference (2025).
Ebrahimi, F., King, J., Cote, T., Nelson, A. O., Leuthold, N., Dominguez-Palacios, J. & Paz-Soldan, C. Multi-species extended MHD simulations of ELM-free negative trangularity DIII-D plasmas and the CETOP SciDAC project in 67th Annual Meeting of the APS Division of Plasma Physics (2025).
Effenberg, F., Abrams, T., Barr, J., Coburn, J., Du, X., Ernst, D., Garofalo, A., Groth, M., Herfindal, J., Hong, S.-H., Lasa, A., McLean, A., Nelson, A. O., Ren, J., Scotti, F., Wilcox, R. S., Yu, J. H., Zimmermann, C. F. B., Buttery, R., Cometa, F., Murphy, C., Petty, C. & Schultz, K. High-Z Wall Transition on DIII-D to Enable Fusion Pilot Plant-Relevant Research in 9th Asia-Pacific Conference on Plasma Physics (2025).
Ernst, D., Odstrcil, T., Osborne, T., Wilks, T. M., Ma, X., Abrams, T., Anand, H., Biwole, A., Bortolon, A., Burgess, D., Chang, C. S., Chen, X., Chen, J., Chrystal, C., Effenberg, F., Eldon, D., Glass, F., Haskey, S., Hatch, D., Hood, R., Hu, Q., Khabanov, F., Ku, S., Laggner, F., Lasnier, C., Li, Z., McKee, G., Nelson, A. O., Rhodes, T. L., Scotti, F., Truong, D., Wang, H. Q., Watkins, J. & Yan, Z. Addressing Core-Edge Integration in Future-Relevant, Low Collisionality, Turbulence-Limited QH-Mode Pedestals in 2025 US Transport Task Force Workshop (2025).
Hansen, C., Samaddar, A., Gong, Q., Flynn, T., Fu, J., Madrieddy, S., Nelson, A. O., Joung, S., Smith, D., Ebrahimi, F. & Kleiner, A. Machine learning for validation of high-fidelity simulations of ELMs and optimization of ELM-free reactor design in 2025 Sherwood Fusion Theory Conference (2025).
Jalalvand, A., Kim, S., Seo, J., Hu, Q., Curie, M., Steiner, P., Nelson, A. O., Na, Y. S. & Koleman, E. Multimodal Super-Resolution Diagnostics for Physics Discovery with Application to Fusion in 21st International Symposium on Laser-Aided Plasma Diagnostics (2025).
Jalalvand, A., Kim, S., Seo, J., Hu, Q., Curie, M., Steiner, P., Nelson, A. O., Na, Y. S. & Koleman, E. Multimodal Super-Resolution Diagnostics for Physics Discovery with Application to Fusion in 40th Annual AAAI Conference on Artificial Intelligence (2025).
Jalalvand, A., Kim, S., Seo, J., Hu, Q., Curie, M., Steiner, P., Nelson, A. O., Na, Y.-S. & Kolemen, E. Machine Learning-Enhanced Multimodal Super-Resolution Diagnostics with Application to ELM and RMP Mechanism Analysis in 2025 Symposium on Fusion Engineering (2025).
Ku, S., Chang, C. S., Hager, R., Schmitz, L. & Nelson, A. O. Gyrokinetic Analysis of Edge Plasma in a Strongly Negative Triangularity Tokamak Plasmas in 4th International Fusion and Plasma Conference (2025).
Ku, S., Chang, C. S., Hager, R., Schmitz, L. & Nelson, A. O. Gyrokinetic study of neoclassical and turbulence properties in the negative triangularity edge in 2025 Sherwood Fusion Theory Conference (2025).
Ku, S., Chang, C. S., Hager, R., Schmitz, L. & Nelson, A. O. Gyrokinetic property of diverted edge plasma in a strongly negative- triangularity DIII-D equilibrium with carbon impurity in 2025 US Transport Task Force Workshop (2025).
Lvovskiy, A., Anand, H., Welander, A. S., Kochan, M., McArdle, G., Vincent, C., Nelson, A. O., Osborne, T. H., Imada, K. & Harrison, J. Enabling Advanced Plasma Shapes on MAST-U Spherical Tokamak EX-S in 30th IAEA Fusion Energy Conference (2025).
Mantica, P., Mariani, A., Aucone, L., Balestri, A., Hobirk, J., Merlo, G., Nelson, A. O. & Sauter, O. Negative triangularity studies in view of DTT operations in 2025 EU-US Transport Task Force Workshop (2025).
Marinoni, A., Chrystal, C., Coda, S., Coosemans, R., Marini, C., Podesta, M., Sauter, O., Agostini, M., Austin, M. E., Barr, J., Belli, E., Candy, J., Hamm, D., Hyatt, A. W., Knolker, M., Osborne, T. H., Lunia, P., Matina, M. L., Mordijck, S., Nelson, A. O., Paz-Soldan, C., Porte, L., Sheikh, U., Scotti, F. & Thome, K. E. NONDIMENSIONAL CONFINEMENT SCALING IN SIMILAR NEGATIVE TRIANGULARITY PLASMAS ON THE DIII-D AND TCV TOKAMAKS. in 30th IAEA Fusion Energy Conference (2025).
Neiser, T., Meneghini, O., Slendebroek, T., Lyons, B. C., McClenaghan, J., Ghiozzi, A., Hall, J., Smith, S. P., Patel, B., Lestz, J., Nelson, A. O., Avdeeva, G., Roach, C. M., Casson, F. J., Dudding, H., Staebler, G. M., Belli, E. A., Candy, J., Thome, K. E., Nazikian, R., Sammuli, B. & Osborne, T. Validating GKNN SAT3 as the most accurate TGLF and CGYRO surrogate for DIII-D, MAST-U and NSTX in 2025 US Transport Task Force Workshop (2025).
Nelson, A. O., Diem, S. & Dominguez, A. Fusion Energy Week: Connecting Communities in the Pursuit of Fusion Energy in IFE-STAR Conference 2025 (2025).
Nelson, A. O., Li, Z., Parisi, J. F., Neiser, T., Wang, H., Schmitz, L., Slendebroek, T., Cote, T., Yu, G., Wilson, H. S., Stewart, S., Leuthold, N., Paz-Soldan, C., Thome, K. E. & Austin, M. E. Mechanisms Defining Pedestal Structure in the DIII-D Negative Triangularity Edge in 67th Annual Meeting of the APS Division of Plasma Physics (2025).
Samaddar, A., Gong, Q., Madireddy, S., Hansen, C., Joung, S., Smith, D. R., Sun, Y., Ebrahimi, F., Balapraksh, P. & Nelson, A. O. Multi-diagnostic Time Series Generative model for Prediction of the Edge Localized Modes in Tokamak plasmas in 67th Annual Meeting of the APS Division of Plasma Physics (2025).
Schmitz, L., Nelson, A. O., Becoulet, M., Qin, X., Huijsmans, G. T. A., Chang, C. S., Thome, K. E., Ku, S., Zeng, L., Singh, R., Khabanov, F., Stewart, S., Chrystal, C., Hyatt, A., Osborne, T. H., Austin, M. E., Paz-Soldan, C. & Team, D.-D. EFFECTIVE EDGE TRANSPORT BARRIERS SUPPORTED BY INTRINSIC ROTATION SHEAR IN DIII-D NEGATIVE TRIANGULARITY PLASMAS in 30th IAEA Fusion Energy Conference (2025).
Schmitz, L., Nelson, A. O., Qin, X., Becoulet, M., Ku, S.-K., Chang, C., Diamond, P., Callahan, K., Huijsmans, G.,Khabanov, F., Zeng, L., Thome, K. E., Yan, Z., Cote, T., Paz-Soldan, C., McKee, G., Osborne, T. & Austin, M. E. Effective Transport Barriers without an H-mode Bifurcation in DIII-D Negative Triangularity Plasmas in 67th AnnualMeeting of the APS Division of Plasma Physics (2025).
Schmitz, L., Nelson, A. O., Qin, X., Chang, C. S., Becoulet, M., Diamond, P. H., Thome, K. E., Ku, S., Singh, R., Khabanov, F., Stewart, S., Zeng, L., Chrystal, C., Osborne, T. H., Austin, M. E., Paz-Soldan, C. & McKee, G. Effective Transport Barriers without H-mode Bifurcation in DIII-D Negative Triangularity Plasmas in 51st European Conference on Plasma Physics (2025).
Scotti, F., Li, N., Mclean, A. G., Burke, M. G., Zhao, M., Thome, K., Eldon, D., Hyatt, A., Ma, X., Marinoni, A., Lore, J., Shafer, M., Paz-Soldan, C., Nelson, A. O., Schmitz, L., Hong, R., Khabanov, F. & Sauter, O. PATHWAYS TO IMPROVED CORE-EDGE INTEGRATION FOR NEGATIVE TRIANGULARITY SCENARIOS IN THE DIII-D TOKAMAK in 30th IAEA Fusion Energy Conference (2025).
Shousha, R., Hansen, C., Maan, A., Nelson, A. O., Boyle, D. P., Banerjee, S., Kubota, S., Li, B., Gajani, H., Morales, J., Lopez, C., Le, T. & Majeski, R. Magnetic Equilibrium Reconstruction in LTX-beta Tokamak with 3D Eddy Current Effects Using TokaMaker in 67th Annual Meeting of the APS Division of Plasma Physics (2025).
Slendebroek, T., Meneghini, O., Nelson, A. O., Lyons, B. C., Neiser, T. F., Dose, G., Ghiozzi, A., McClenaghan, J., Trifoglio, M. & Holland, C. Examining the impacts of power-exhaust solutions on core performance with FUSE in 2025 US Transport Task Force Workshop (2025).
Slendebroek, T., Nelson, A. O., Meneghini, O., Dose, G., Ghiozzi, A., Harvey, J., Lyons, B. C., McClenaghan, J., Neiser, T. F., Weisberg, D. B., Yoo, M. G., Bursch, E. & Holland, C. Exploring the fusion power plant design space: comparative analysis of positive and negative triangularity tokamaks through optimization in 67th Annual Meeting of the APS Division of Plasma Physics (2025).
Smith, S. P., Denk, S. S., Amara, T., Xing, Z. A., Nelson, A. O., Tyler, N., Simpson, C., Chard, R., Clark, C. M., DeShazer, E. W., Flanagan, S., Odstrcil, T., Stagner, L., Logan, N., Ding, P., Nazikian, R. & Schissel, D. Automating advanced equilibrium reconstruction methods for DIII-D in 30th IAEA Fusion Energy Conference (2025).
Stewart, S., McKee, G., Thome, K. E., Cote, T., Geiger, B., Hyatt, A., Khabanov, F., Marinoni, A., Nelson, A. O., Schmitz, L., Scotti, F. & Yan, Z. Experimental Measurements of Turbulence and Zonal Flow Characteristics in DIII-D Negative Triangularity Plasmas using Beam Emission Spectroscopy in 2025 US Transport Task Force Workshop (2025).
Stewart, S., McKee, G., Thome, K. E., Cote, T., Geiger, B., Hyatt, A., Khabanov, F., Marinoni, A., Nelson, A. O., Schmitz, L., Scotti, F. & Yan, Z. Measurements of Turbulence and Zonal Flow Characteristics in DIII-D Negative Triangularity Scans using Beam Emission Spectroscopy in 67th Annual Meeting of the APS Division of Plasma Physics (2025).
Vanovac, B., Hobirk, J., Puetterich, T., Sauter, O., Faitsch, M., Dunne, M., Nelson, A. O., Mantica, P., Fischer, R., Stieglitz, D. & White, A. E. Overview of negative triangularity experiments with strong shaping in ASDEX Upgrade in 67th Annual Meeting of the APS Division of Plasma Physics (2025).
Wilks, T. M., Osborne, T., Hu, Q., Ernst, D., Snyder, P. B., Knolker, M., Wilcox, R., Hyatt, A., Balbin-Arias, J. J., Gerru, R., Gorno, S., Holcomb, C., Holm, A., Hubbard, A., Kim, K., Ma, X., Nelson, A. O., Shafer, M., Shiraki, D., Turco, F. & Wang, H. HIGH PEDESTAL PRESSURE PATH TO HIGH FUSION PERFORMANCE LEVERAGING THE NEW “SHAPE AND VOLUME RISE” DIVERTOR ON DIII-D in 30th IAEA Fusion Energy Conference (2025).
Wilks, T., Osborne, T., Snyder, P., Knolker, M., Wilcox, R., Hu, Q., Ernst, D., Yang, J., Hyatt, A., Balbin-Arias, J., Gerru, R., Gorno, S., Holcomb, C., Holm, A., Hughes, J., Hubbard, A., Kim, K., Ma, X., Nelson, A. O., Shafer, M., Shiraki, D., Turco, F. & Wang, H. Strategies for reaching high density and opacity conditions leveraging the Shape and Volume Rise divertor on DIII-D in 2025 US Transport Task Force Workshop (2025).
Wilks, T., Osborne, T., Snyder, P., Knolker, M., Wilcox, R., Hu, Q., Ernst, D., Yang, J., Hyatt, A., Balbin-Arias, J., Gerru, R., Gorno, S., Holcomb, C., Holm, A., Hughes, J., Hubbard, A., Kim, K., Ma, X., Nelson, A. O., Shafer, M., Shiraki, D., Turco, F. & Wang, H. Strategies for reaching high density and opacity conditions leveraging the Shape and Volume Rise divertor on DIII-D in 67th Annual Meeting of the APS Division of Plasma Physics (2025).
Wilson, H., Nelson, A. O., Park, J. M., Borowiec, K., Emdee, E., Collins, C. & Paz-Soldan, C. Power balance optimization with integrated whole-device modeling of MANTA, a negative triangularity fusion pilot plant concept in 67th Annual Meeting of the APS Division of Plasma Physics (2025).
Yasoda, K., Panici, D., Nelson, A. O., Laggner, F. M. & Kolemen, E. Characterization of ELM Pacing via Vertical Kicks on DIII-D in 67th Annual Meeting of the APS Division of Plasma Physics (2025).

2024

Austin, M. E., Thome, K. E., Glass, F., Marinoni, A., Nelson, A. O. & Paz-Soldan, C. Confinement and performance trends in DIII-D negative triangularity discharges in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Balbin-Arias, J., Degrandchamp, G., Ernst, D., Holcomb, C., Holm, A., Hu, Q., Hughes, J. W., Kim, M., Knolker, M., Ma, X., Nelson, A. O., Shafer, M., Snyder, P. B., Turco, F., Wang, H. & Wilcox, R. Strategies for reaching high density and opacity conditions leveraging the Shape and Volume Rise divertor on DIII-D in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Bechtel Amara, T., Smith, S., Xing, Z. A., Neiser, T. F., Simpson, C., Nelson, A. O., Denk, S., Colmenares, J., DeShazer, E., Antepara, O., Deshpande, A., Clark, M., Tyler, N., Ding, P., Kostuk, M., Dart, E., Nazikian, R., Osborne, T., Williams, S., Uram, T. & Schissel, D. Accelerating Discoveries at DIII-D With the Integrated Research Infrastructure in Visualizing Large Dataset Workshop (2024).
Casali, L., Eldon, D., Odstrcil, T., Mattes, R., Welsh, A., Nelson, A. O., Paz-Soldan, C., Burke, M. G., Lasnier, C., McLean, A., Scotti, F., Thome, K. E. & Truong, D. Highly radiating plasmas in negative triangularity with reactor-relevant seeding gases in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Casali, L., Eldon, D., Odstrcil, T., Mattes, R., Welsh, A., Lee, K., Khabanov, F., Nelson, A. O., Burke, G., Lasnier, C. J., Paz-Soldan, C., Scotti, F., Thome, K. E. & Truong, D. First achievement of highly radiating plasmas with reactor relevant seeding gases in negative triangularity in 26th International Conference on Plasma Surface Interaction (2024).
Cote, T. B., Yu, G., Stewart, S., Khabanov, F. O., Nelson, A. O., Leuthold, N., Richner, N., Schmitz, L., Thome, K. E., Paz-Soldan, C. & Austin, M. E. Overview of edge instabilities in strongly shaped negative triangularly plasmas on DIII-D in 2024 US Transport Task Force Workshop (2024).
Dominguez-Palacios, J., King, J. R., Izzo, V., Chen, X., Pankin, A., Ebrahimi, F. & Nelson, A. O. Modeling of QH-mode DIII-D plasmas with an extended MHD code in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Ebrahimi, F., Cote, T., King, J., Nelson, A. O., Leuthold, N., Paz-Soldan, C. & Team, C. Extended MHD studies of ELM-free negative-triangularity plasmas and the CETOP SciDAC-5 project in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Hansen, C., Joung, S., Nelson, A. O., Madrieddy, S., Samaddar, A., Smith, D. & Ebrahimi, F. Machine learning for validation of high-fidelity simulations of ELMs and optimization of ELM-free reactor design in 2024 Sherwood Fusion Theory Conference (2024).
Jalalvand, A., Curie, M., Kim, S., Seo, J., Steiner, P., Hu, Q., Nelson, A. O. & Koleman, E. Enhancing Temporal Resolution in Fusion Diagnostics through Multimodal Neural Networks in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Jalalvand, A., Curie, M., Kim, S., Seo, J., Steiner, P., Hu, Q., Nelson, A. O. & Koleman, E. Multimodal Super-Resolution Diagnostics for Physics Discovery with Application to Fusion in 2024 H-Mode Workshop (2024).
Jalalvand, A., Curie, M., Kim, S., Seo, J., Steiner, P., Hu, Q., Nelson, A. O. & Koleman, E. Multimodal Super-Resolution Diagnostics for Physics Discovery with Application to Fusion in 2024 IAEA 3rd TM on Plasma Disruptions and their Mitigation (2024).
Jalalvand, A., Curie, M., Kim, S., Seo, J., Steiner, P., Hu, Q., Nelson, A. O. & Koleman, E. Multimodal Super-Resolution Diagnostics for Physics Discovery with Application to Fusion in Third Technical Meeting on Plasma Disruptions and their Mitigation (2024).
Kramer, G., Nelson, A. O. & Thome, K. E. Full orbit calculations show that the negative triangularity and H-mode plasma edge are equivalent in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Krogen, K., Nelson, A. O., Ailiani, V., Leuthold, N., Logan, N. C., Xing, Z. A., Denk, S., Amara, T. B., Smith, S., Avdeeva, G. & Nazikian, R. Understanding the Role of Equilibrium Uncertainty in Physics Assessments on DIII-D in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Ku, S., Chang, C. S., Hager, R., Schmitz, L. & Nelson, A. O. Gyrokinetic study of neoclassical and turbulence properties in negative triangularity edge in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Ku, S.-., Chang, C. S., Hager, R., Schmitz, L. & Nelson, A. O. Neoclassical Properties of Tokamak Edge Plasmas with Negative Triangularity in 2024 Sherwood Fusion Theory Conference (2024).
Neil, E. R., Xie, R., Chapman, B., Pandya, M., Mccollam, K., Myers, R., Chen, J., Benedett, T. E., Nelson, A. O. & Lestz, J. Investigation of Instabilities During Nonstandard Sawtooth Periods in the DIII-D Tokamak in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Neiser, T., Meneghini, O., Slendebroek, T., Smith, S. P., McClenaghan, J., Ghiozzi, A., Patel, B., Nelson, A. O., Avdeeva, G., Roach, C. M., Casson, F. J., Dudding, H., Staebler, G. M., Hall, J., Lyons, B. C., Belli, E. A., Candy, J., Yu, R., Sammuli, B., Nazikian, R. & Osborne, T. Large database validation of TGLF on DIII-D and MAST-U plasmas in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Neiser, T. F., Meneghini, O., Slendebroek, T., Smith, S., McClenaghan, J., Ghiozzi, A., Patel, B., Nelson, A. O., Avdeeva, G., Roach, C. M., Casson, F. J., Dudding, H., Staebler, G. M., Hall, J., Belli, E. A., Candy, J., Sammuli, B. & Osborne, T. Large database validation of TGLF on DIII-D and MAST-U plasmas in 2024 US Transport Task Force Workshop (2024).
Nelson, A. O., Parisi, J., Wilson, H. S., Neiser, T., Schmitz, L., Leuthold, N. & Paz-Soldan, C. Work towards a Gyrokinetic Assessment of the Negative Triangularity Edge on DIII-D in 43rd ITPA PEP Meeting, Princeton (2024).
Nelson, A. O. & Paz-Soldan, C. Initial Achievement of ELM-free Negative Triangularity in the MAST-U Spherical Tokamak in NSTX-U/ST Collaboration Results Review (2024).
Nelson, A. O., Schmitz, L., Wilson, H. S., Parisi, J. F., Neiser, T., Cote, T. B., Stewart, S., Leuthold, N., Paz-Soldan, C., Thome, K. E., Austin, M. E. & the DIII-D Team. Properties and Limits of the ELM-free Negative Triangularity Edge on DIII-D in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Nelson, A. O., Vincent, C., Anand, H., Imada, K., Lovell, J., Parisi, J. F., Wehner, W. P., Barr, J., Kochan, M., Blackmore, S., McArdle, G., Wilson, H. S., Guizzo, S., Rondini, L., Freiberger, S. & Paz-Soldan, C. Initial Achievement of ELM-free Negative Triangularity in the MAST-U Spherical Tokamak in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Nelson, A. O., Vincent, C., Anand, H., Imada, K., Lovell, J., Parisi, J. F., Wehner, W. P., Barr, J., Kochan, M., Blackmore, S., McArdle, G., Wilson, H. S., Guizzo, S., Rondini, L., Freiberger, S. & Paz-Soldan, C. Initial Achievement of ELM-free Negative Triangularity in the MAST-U Spherical Tokamak in 22nd International Spherical Torus Workshop (2024).
Parisi, J. F., Nelson, A. O., Berkery, J. W., Kleiner, A., Imada, K., Lampert, M. & Kaye, S. M. Effect of plasma shaping on pedestal width-height scaling and prospects for ELM-free operation at low aspect ratio in 22nd International Spherical Torus Workshop (2024).
Schmitz, L., Nelson, A. O., Khabanov, F., Zeng, L., Callahan, K., Thome, K. E., Paz-Soldan, C., Yan, Z. & Austin, M. E. Transport Barrier Physics in DIII-D Negative Triangularity Plasmas in 2024 US Transport Task Force Workshop (2024).
Schmitz, L., Nelson, A. O., Qin, X., Diamond, P. H., Callahan, K., Khabanov, F. O., Ku, S., Zeng, L., Thome, K. E., Paz-Soldan, C., Yan, Z. & Austin, M. E. Effective Transport Barriers without H-mode Bifurcation in DIII-D Negative Triangularity Plasmas in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Scotti, F., Thome, K. E., Choi, W., Hyatt, A., Lore, J., Marinoni, A., Ma, X., Nelson, A. O., Shafer, M. & Zhao, M. Design of a new closed divertor for negative triangularity operation in DIII-D in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Smith, S., Bechtel Amara, T., Xing, Z. A., Neiser, T. F., Simpson, C., Nelson, A. O., Denk, S., Colmenares, J., DeShazer, E., Antepara, O., Deshpande, A., Clark, M., Tyler, N., Ding, P., Kostuk, M., Dart, E., Nazikian, R., Osborne, T., Williams, S., Uram, T. & Schissel, D. Accelerating DIII-D Analyses with the Integrated Research Infrastructure in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Stewart, S., McKee, G., Chrystal, C., Geiger, B., Khabanov, F., Nelson, A. O., Paz-Soldan, C., Schmitz, L. & Thome, K. E. Characterization of Turbulence in Negative Triangularity DIII-D Plasmas using Beam Emission Spectroscopy in 2024 US Transport Task Force Workshop (2024).
Stewart, S., McKee, G., Chrystal, C., Geiger, B., Khabanov, F., Nelson, A. O., Paz-Soldan, C., Schmitz, L. & Thome, K. E. Characterization of Turbulence in Negative Triangularity DIII-D Plasmas using Beam Emission Spectroscopy in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Thome, K. E., Austin, M. E., Paz-Soldan, C., Scotti, F., Anand, H., Barr, J., Casali, L., Choi, W., Cote, T., Ding, S., Eldon, D., Hyatt, A., Lore, J., Ma, X., Marinoni, A., Nelson, A. O., Schmitz, L. & Zhao, M. Current and Future Research on Negative Triangularity on the DIII-D Tokamak in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Wang, A., Boyer, M., Nelson, A. O., Hasse, C., Sweeney, R., Woodall, C., Rea, C., Battaglia, D. & Pau, A. Plasma Operational Simulation (POPSIM): A Control-Oriented Simulation Toolbox for Parallel Simulation, System Identification, and Optimization in 66th Annual Meeting of the APS Division of Plasma Physics (2024).
Wilson, H., Nelson, A. O., McClenaghan, J. & Paz-Soldan, C. Using integrated modeling to explore the core operational space around a reactor-class negative triangularity tokamak in 2024 Sherwood Fusion Theory Conference (2024).

2023

Austin, M. E., Casali, L., Chrystal, C., Cote, T., Du, X. D., Eldon, D., Ernst, D. R., Khabanov, F. O., Lunia, P., Marinoni, A., Mattes, R., McKee, G. R., Mordijck, S., Nelson, A. O., Paz-Soldan, C., Schmitz, L., Scotti, F., Stewart, S., Thome, K. E. & Welsh, A. Initial Transport Results of the DIII-D Negative Triangularity Campaign in 27th oint EU-US Transport Task Force (2023).
Austin, M. E., Marinoni, A., Nelson, A. O., Paz-Soldan, C., Sauter, O. & Thome, K. E. Features of negative triangularity profiles in DIII-D and their implications for transport in 2023 US Transport Task Force Workshop (2023).
Battaglia, D. J., Body, T., Brookman, M., Burgess, D., Creely, A., Eich, T., Hasse, C., Howard, N., Hubbard, A. E., Hughes, J., Logan, N., Myers, C., Nelson, A. O., Paz-Soldan, C., Perks, C. J., Rea, C., Reinke, M., Rodriguez Fernandez, P., Rice, J., Saltzman, A., Scott, A., Sweeney, R., Tinguely, R. A., Wilks, T. & Wigram, M. Q Q > 1 Operation Space in the First SPARC Campaign in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Body, T., Kuang, A. Q., Reinke, M., Battaglia, D. J., Hasse, C., Eich, T., Looby, T., Brookman, M., Rodriguez Fernandez, P., Howard, N., Wigram, M., Ballinger, S., Corsaro, L. & Nelson, A. O. Integrating edge exhaust in SPARC L-mode scenario development in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Casali, L., Eldon, D., Odstrcil, T., Welsh, A., Lee, K., Mattes, R., Nelson, A. O., Paz, C., Burke, M. G., Cote, T., Khabanov, F., Lasnier, C., McLean, A., Scotti, F., Thome, K. & Truong, D. First Integration of negative triangularity plasmas with high core radiation fraction in 29th IAEA Fusion Energy Conference (2023).
Casali, L., Eldon, D., Welsh, A., Odstricil, T., Nelson, A. O., Paz-Soldan, C., Burke, G., Cote, T., Khabanov, F., Lasnier, C., Mattes, R., McLean, A., Rhodes, T., Scotti, F., Thome, K. E. & Truong, D. First Integration of negative triangularity plasmas with high radiation fraction in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Cavallaro, A., Wilks, T. M., Hubbard, A. E., Ernst, D., Shoji, L., Nelson, A. O., Leuthold, N., Happel, T. & Herschel, M. Multimachine Database Study of I-Mode Core Confinement and Edge Gradients in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Chen, X., Burrell, K., Houshmandyar, S., Li, Z., Odstrcil, T., Osborne, T., Ernst, D., Diamond, P., Mckee, G., Yan, Z., Viezzer, E., Bortolon, A. & Nelson, A. O. RECENT PROGRESS OF THE REACTOR-RELEVANT INTRINSICALLY ELM- STABLE QUIESCENT H-MODE ON THE DIII-D TOKAMAK in 29th IAEA Fusion Energy Conference (2023).
Cote, T. B., Yu, G., Khabanov, F. O., Stewart, S., Nelson, A. O. & Schmitz, L. Observation of a bursty high-frequency edge instability in DIII-D strongly shaped divertered negative triangularity plasmas in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Ernst, D., Bortolon, A., Chen, X., King, J., Nelson, A. O., Battaglia, D. & Hubbard, A. E. Results of the 2022 U.S. Joint Research Target on Intrinsically Non-ELMing Enhanced Confinement Regimes in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Ernst, D. R., Bortolon, A., Chen, X., King, J. & Nelson, A. O. Recent Experiments and Simulations to Develop Intrinsically Non-ELMing Enhanced Confinement Regimes in 49th European Conference on Plasma Physics (2023).
Guizzo, S., Nelson, A. O., Hansen, C. & Paz-Soldan, C. Modeling the vertical stability of negative triangularity reactors in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Harrison, J. R. et al. OVERVIEW OF PHYSICS RESULTS FROM MAST UPGRADE TOWARDS CORE-PEDESTAL-EXHAUST INTEGRATION in 29th IAEA Fusion Energy Conference (2023).
Hu, Q., Hahm, T. S., Kim, S. K., Park, J.-K., Nelson, A. O., Paz-Soldan, C., Park, S., Na, Y.-S. & Choi, G. ExB shearing rate in negative triangularity tokamak plasmas in 10th Asia Pacific-Transport Working Group (2023).
Hubbard, A., Angulo, A., Austin, M. E., Cavallaro, A. J., Chen, J., Chrystal, C., Happel, T., Haskey, S., Hong, R., Hughes, J. W., McKee, G. R., Nelson, A. O., Osborne, T., Rosenthal, A., Rhodes, T. L., Wilks, T., Yan, Z., Yu, G., Zamperini, S. & Zhu, Y. Stationary I-modes in multiple configurations in the DIII-D tokamak in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Kim, S. K., Yang, S. M., Park, J. K., Kolemen, E., Hu, Q., Logan, N., Nelson, A. O., Choi, G. J., Lee, Y. H., Lee, H., Jeon, Y. M., Kim, J. H., Lee, C. Y. & Shousha, R. INVESTIGATION OF RMP-INDUCED ION-SCALE TURBULENCE IN THE PEDESTAL AND ITS ROLE IN ACCESSING THE OPTIMIZED HIGH- CONFINEMENT ELM-FREE STATE in 29th IAEA Fusion Energy Conference (2023).
Kim, S. K., Shousha, R., Yang, Y. M., Hu, Q., Nelson, A. O., Logan, N. C., Nazikian, R., Park, J. K., Wilcox, R., Rhodes, T., Hong, R., Paz-Soldan, C., Erickson, K., Battey, A., Hahn, S. H., Jeon, Y. M., Bortolon, A., Snipes, J. & Koleman, E. Adaptive ELM Control and its Development in KSTAR and DIII-D in 2nd International Fusion and Plasma Conference (2023).
Kim, S., Shousha, R., Hu, Q., Nelson, A. O., Nazikian, R., Yang, S. M., Logan, N. C., Park, J.-K., Wilcox, R., Rhodes, T., Hong, R., Paz-Soldan, C., Battey, A., Erickson, K., Bortolon, A. & Koleman, E. Adaptive ELM Control in DIII-D towards complete ELM suppression from H-mode transition with high-confinement in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Knolker, M., Osborne, T., Snyder, P. B., Wilks, T. M., Hu, Q., McClenaghan, J., Cote, T. B., Paz-Soldan, C., Nelson, A. O. & Wilcox, R. S. Advances in RMP ELM suppression towards high pedestal pressures harnessing the Super H-mode regime in 29th IAEA Fusion Energy Conference (2023).
Kramer, G. J., Nelson, A. O. & Thome, K. E. Full-orbit simulation of charge separation for negative triangularity plasma shapes in DIII-D in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Labbate, J. A., Berkery, J., Parisi, J., Podesta, M., Dominguez-Palacios, J. J., Cruz-Zabala, D. J., Reyner Vinolas, A., Garcia-Munoz, M., Viezzer, E. & Nelson, A. O. Analyzing mode stability to identify stable operating regions for the novel SMall Aspect Ratio Tokamak (SMART) in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Mordijck, S., Austin, M. E., Thome, K. E., Barr, J., Chaban, R., Paz-Soldan, C. & Nelson, A. O. Density peaking and particle transport in negative triangularity discharges on DIII-D in 2023 US Transport Task Force Workshop (2023).
Mordijck, S., Austin, M. E., Thome, K. E., Barr, J., Chaban, R., Paz-Soldan, C. & Nelson, A. O. Density peaking and particle transport in negative triangularity discharges on DIII-D in 49th European Conference on Plasma Physics (2023).
Mordijck, S., Odstrcil, T., Austin, M. E., Thome, K. E., Barr, J., Chaban, R., Paz-Soldan, C. & Nelson, A. O. Density Peaking and Particle Transport in Negative Triangularity Discharges on DIII-D in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Nelson, A. O., Arnold, D., Boyes, W., Chandra, R., Choudhury, H., Dasilva, N., Hansen, C., Lunia, P., Paz-Soldan, C., Pharr, M., Tobin, M., Wilson, H. S., Ball, J., Bielajew, R., Benjamin, S., Calvo-Carrera, M., Chang, C., Corsaro, L., Cummings, C., Devitre, A., Diab, R., Ferry, S., Frank, S., Jerkins, J., Johnson, J., Liu, M., Mackie, S., Mandell, N., Maris, A., Miller, M. A., Mouratidis, T., Murphy, D., Peterson, E., Rutherford, G., Saltzman, A., Segantin, S. & Whyte, D. EXPLORING THE NEGATIVE-TRIANGULARITY PATHWAY TO FUSION WITH MANTA in 29th IAEA Fusion Energy Conference (2023).
Nelson, A. O., Paz-Soldan, C., Wilson, H. S., Schmitz, L., Cote, T. B., Thome, K. E., Hyatt, A., Osborne, T., Sciortino, F., Happel, T., P ̈utterich, T., Hobirk, J., Yu, G., Mckee, G., Stewart, S., Kramer, G. J., Sauter, O., Austin, M. E. & Marinoni, A. ROBUST L-MODE EDGE BEHAVIOR IN HIGH PERFORMANCE NEGATIVE TRIANGULARITY PLASMAS: FROM EXPERIMENTS TO REACTORS in 29th IAEA Fusion Energy Conference (2023).
Nelson, A. O., Guizzo, S., Hyatt, A. W., Wehner, W., Welander, A. S., Paz-Soldan, C., Osborne, T., Anand, H. & Thome, K. E. On the vertical stability of DIII-D discharges with strong negative triangularity in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Newman, D., James, R. W., Dominguez, A., Murphy, N., Merritt, E. C., Nelson, A. O., Crane, J. & Adams, M. Becomings: Modified Green-Amber-Red protocol with the David Newman Model (GARDN - M) for DPP Site Selection in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Parisi, J., Guttenfelder, W., Nelson, A. O., Gaur, R., Lampert, M., Kleiner, A., Avdeeva, G., Berkery, J., Clauser, C., Curie, M., Diallo, A., Dorland, W. D., Kaye, S. M., McClenaghan, J. & Parra, F. Kinetic ballooning mode constraints for tokamak pedestals with varying aspect ratio and plasma shaping in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Parisi, J. F., Guttenfelder, W., Nelson, A. O., Clauser, C., Curie, M., Diallo, A., Gaur, R., Kleiner, A., Lampert, M. & Mcclenaghan, J. A GYROKINETICS-BASED MODEL FOR PREDICTING PEDESTAL WIDTH SCALING AT ARBITRARY ASPECT RATIO in 29th IAEA Fusion Energy Conference (2023).
Paz-Soldan, C., Battey, A. F., Hansen, C., Leuthold, N., Logan, N. C., Nelson, A. O., Stewart, I. G., Battaglia, D. J., Creely, A. J., Myers, C. E., Reinke, M. L., Garnier, D. T., Granetz, R. S., Sweeney, R. & Tinguely, R. A. EQUILIBRIUM, STABILITY, AND DISRUPTION CALCULATIONS SUPPORTING THE DESIGN AND ASSEMBLY OF THE SPARC TOKAMAK in 29th IAEA Fusion Energy Conference (2023).
Paz-Soldan, C., Austin, M. E., Barr, J., Boyes, W., Casali, L., Chrystal, C., Cote, T., Ding, S., Du, X., Eldon, D., Ernst, D., Hong, R., Hyatt, A., Khabanov, F. O., Lunia, P., Marinoni, A., Mattes, R., McKee, G., Mordijck, S., Nelson, A. O., Osborne, T., Sauter, O., Shiraki, D., Schmitz, L., Scotti, F., Stewart, S., Thome, K. E., Welsh, A., Wilks, T. & Wilson, H. Highlights from the DIII-D Negative Triangularity Campaign in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Pisinger, M., Li, Z., Chen, X., Osborne, T. H. & Nelson, A. O. Database and stability analysis for DIII-D QH-mode plasmas in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Rondini, L., Freiberger, S., Nelson, A. O., Paz-Soldan, C. & Zhang, X. Verifying Improved Particle Trapping in Negative Triangularity Plasmas in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Rondini, L., Freiberger, S., Nelson, A. O., Paz-Soldan, C. & Zhang, X. Verifying improved particle trapping in negative triangularity plasmas in 2023 Theory and Simulation of Disruptions Workshop (2023).
Schmitz, L., Nelson, A. O., Hyatt, A. W., Zeng, L., Thome, K. E., Hong, R., Cote, T. B., Paz-Soldan, C., Stewart, S., Yan, Z., Khabanov, F., Osborne, T. H., Austin, M. E. & Marinoni, A. Edge Flows, Limit Cycle Oscillations, and Transport Barrier Evolution in DIII-D Negative Triangularity Plasmas in 2023 US Transport Task Force Workshop (2023).
Schmitz, L., Zeng, L., Callahan, K., Hong, R., Nelson, A. O., Paz-Soldan, C. & Cote, T. Edge Transport Barrier Evolution and H-mode inhibition in Negative Triangularity Plasmas in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Scotti, F., McLean, A. G., Marinoni, A., Lasnier, C. J., Eldon, D., Paz-Soldan, C., Nelson, A. O., Thome, K. E., Truong, D., Wang, H., Burke, M. G., Wilcox, R., Li, N., Lore, J., Zhao, M., Hyatt, A., Osborne, T., Leonard, A. & Fenstermacher, M. Detachment and scrape-off layer radial transport characterization in Negative Triangularity discharges in DIII-D in 7th Asia-Pacific Conference on Plasma Physics (2023).
Scotti, F., McLean, A. G., Marinoni, A., Lasnier, C. J., Eldon, D., Paz-Soldan, C., Nelson, A. O., Thome, K. E., Truong, D., Wang, H., Burke, M. G., Wilcox, R., Li, N., Lore, J., Zhao, M., Hyatt, A., Osborne, T., Leonard, A. & Fenstermacher, M. Detachment and scrape-off layer radial transport characterization in Negative Triangularity discharges in DIII-D in 2023 US Transport Task Force Workshop (2023).
Shousha, R., Battey, A., Rothstein, A., Paz-Soldan, C., Koleman, E., Shin, G., Park, G. Y., Abbate, J., Erickson, K., Kim, M., Logan, N., Nelson, A. O., Hu, Q., Wilcox, R., Hahn, S. H., Yang, S. M., Ko, W. H. & Jeon, Y. M. CLOSED LOOP RMP ELM SUPPRESSION WITH MINIMIZED CONFINEMENT DEGRADATION USING ADAPTIVE CONTROL DEMONSTRATED IN DIII-D AND KSTAR in 29th IAEA Fusion Energy Conference (2023).
Smith, S. P., Bechtel, T. A., Denk, S., DeShazer, E., Nelson, A. O., Stephey, L., Xing, Z. A., Antepara, O., Dart, E., Nazikian, R. & Williams, S. Leveraging increased computing power at NERSC for DIII-D CAKE analysis in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Smith, S., Bechtel, T. A., Denk, S., DeShazer, E., Nelson, A. O., Stephey, L., Xing, Z., Antepara, O., Dart, E., Nazikian, R. & Williams, S. Connecting DIII-D and NERSC to support DIII-D Operations through Kinetic Equilibrium Analysis in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Stewart, S., Chrystal, C., Geiger, B., Khabanov, F., Nelson, A. O., Paz-Soldan, C., Qin, X., Schmitz, L., Thome, K. E., Yan, Z. & McKee, G. Investigation of Turbulence Properties in Negative Triangularity Plasmas on DIII-D using Beam Emission Spectroscopy in 27th joint EU-US Transport Task Force (2023).
Stewart, S., Chrystal, C., Geiger, B., Khabanov, F., Nelson, A. O., Paz-Soldan, C., Qin, X., Schmitz, L., Thome, K. E., Yan, Z. & McKee, G. Investigation of Turbulence Properties in Negative Triangularity Plasmas on DIII-D using Beam Emission Spectroscopy in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Stewart, S., McKee, G., Khabanov, F., Qin, X., Yan, Z., Geiger, B., Nelson, A. O., Paz-Soldan, C. A. & Chrystal, C. Investigation of Turbulence Properties in Negative Triangularity Plasmas on DIII-D using Beam Emission Spectroscopy in 2023 US Transport Task Force Workshop (2023).
Teplukhina, A. A., Battaglia, D. J., Body, T., Boyer, M., Creely, A. J., Hasse, C., Kaloyannis, P. S., Logan, J., Looby, T., Wai, J., Contre, C., Felici, F., Merle, A., Sauter, O., Garnier, D. T., Howard, N. T., Rodriguez Fernandez, P., Wang, A., Nelson, A. O., Paz-Soldan, C. & Stewart, I. G.Full-pulse simulations for SPARC using MOSAIC in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Thome, K. E., Austin, M. E., Hyatt, A., Marinoni, A., Nelson, A. O., Paz-Soldan, C., Scotti, F., Barr, J. L., Burke, M. G., Casali, L., Chrystal, C., Coda, S., Cote, T. B., Ding, S., Du, X. D., Eldon, D., Ernst, D., Fenstermacher, E., Garofalo, A., Hong, R., Khabanov, F. O., Kramer, G. J., Lasnier, C. J., Logan, N. C., Lunia, P., McKee, G. R., McLean, A. G., Mordijck, S., Okabayashi, M., Sauter, O., Schmitz, L., Shiraki, D., Stewart, S., Truong, D. D., Osborne, T., Victor, B. S., Wang, H. Q., Wehner, W. P., Welander, A. S., Wilks, T. M., Yang, J., Yu, G. & Zeng, L. Assessment of Negative Triangularity as a Reactor Scenario in DIII-D in 29th IAEA Fusion Energy Conference (2023).
Thome, K. E., Austin, M. E., Casali, L., Chrystal, C., Cote, T. B., Du, X. D., Eldon, D., Ernst, D., Hong, R., Khabanov, F. O., Lunia, P., Marinoni, A., McKee, G. R., Mordijck, S., Nelson, A. O., Paz-Soldan, C., Sauter, O., Schmitz, L., Scotti, F., Stewart, S. & Zhao, M. Initial Transport Results from the DIII-D Negative Triangularity Campaign in 2023 US Transport Task Force Workshop (2023).
Thome, K. E., Austin, M. E., Hyatt, A., Marinoni, A., Nelson, A. O., Paz-Soldan, C., Scotti, F., Barr, J. L., Boyes, W., Casali, L., Chrystal, C., Cote, T. B., Ding, S., Du, X. D., Eldon, D., Ernst, D., Garafalo, A., Hong, R., Khabanov, F. O., Kramer, G. J., Lasnier, C. J., Lunia, P., McKee, G., McLean, A. G., Mordijck, S., Okabayashi, M., Sauter, O., Schmitz, L., Shiraki, D., Stewart, S., Takemura, Y., Truong, D. D., Osborne, T., Wang, H. Q., Wilks, T. M. & Zhao, M. Overview of Results from the DIII-D Negative Triangularity Campaign in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Thome, K. E., Austin, M. E., Hyatt, A., Marinoni, A., Nelson, A. O., Paz-Soldan, C., Scotti, F., Barr, J. L., Boyes, W., Casali, L., Chrystal, C., Cote, T. B., Ding, S., Du, X. D., Eldon, D., Ernst, D., Garafalo, A., Hong, R., Khabanov, F. O., Kramer, G. J., Lasnier, C. J., Lunia, P., McKee, G., McLean, A. G., Mordijck, S., Okabayashi, M., Sauter, O., Schmitz, L., Shiraki, D., Stewart, S., Takemura, Y., Truong, D. D., Osborne, T., Wang, H. Q., Wilks, T. M. & Zhao, M. Overview of the DIII-D Negative Triangularity Campaign in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Welsh, A., Casali, L., Eldon, D., Odstrcil, T., Nelson, A. O., Mattes, R., Cote, T., Paz-Soldan, C. & Thome, K. E. Characterization of the operational space at high radiation high power negative triangularity plasmas at DIII-D in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Wilson, H. S., Nelson, A. O., Paz-Soldan, C., McClenaghan, J., Odstricil, T., Casali, L., Eldon, D., Welsh, A. & Mattes, R. Integrated modeling of highly radiative plasmas with negative triangularity shaping in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Wilson, H. S., ei al. Integrated design of a pulsed, modular, negative triangularity pilot plant concept in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Xia, J., Battey, A., Choudhury, H., Nelson, A. O., Paz-Soldan, C., Barr, J., Eidietis, N., Hollmann, E., Lvovskiy, A. & Shiraki, D. Analysis of Final Loss Events in DIII-D due to Vertically Unstable Benign Runaway Electron Beams in 65th Annual Meeting of the APS Division of Plasma Physics (2023).
Xing, Z. A., Smith, S. P., Bechtel, T. A., Denk, S., DeShazer, E., Nelson, A. O., Stephey, L., Antepara, O., Dart, E., Nazikian, R. & Williams, S. Leveraging NERSC computing to support DIII-D operations through profile analysis and kinetic equilibrium reconstruction in 4th Fusion HPC Workshop November (2023).
Yang, J., Sips, A. C. C., Walker, M., De Vries, P., Sinha, J., Kim, H. T., Ono, M., Glass, F., Austin, M., Van Zeeland, M., Herfindal, J., Shafer, M., Nelson, A. O., Marini, C., Hyatt, A., Turco, F. & Pinsker, R. Dependence of EC toroidal injection angle on effective EC assisted startup in 65th Annual Meeting of the APS Division of Plasma Physics (2023).

2022

Battaglia, D. J., Wai, J. T., Brookman, M., Creely, A., Looby, T., Myers, C., Battey, A., Hansen, C., Nelson, A. O., Stewart, I., Garnier, D., Garnetz, R. & Rodriguez Fernandez, P. Scenario modeling for SPARC in 64th Annual Meeting of the APS Division of Plasma Physics (2022).
Burgess, D. A., Nelson, A. O. & Paz-Soldan, C. Influence of Plasma and Machine Parameters on Time to First ELM in DIII-D in 64th Annual Meeting of the APS Division of Plasma Physics (2022).
Curie, M., Larakers, J. L., Hatch, D. R., Nelson, A. O., Diallo, A., Hassan, E., Guttenfelder, W., Halfmoon, M., Kotschenreuther, M., Hazeltine, R. D., Mahajan, S. M., Groebner, R. J., Chen, J., Perez von Thun, C., Frassinetti, L., Saarelma, S., Giroud, C. & Tennery, M. A survey of pedestal magnetic fluctuations using gyrokinetics and a global reduced model for microtearing stability in 2022 US Transport Task Force Workshop (2022).
Garnier, D., Nelson, A. O. & Battaglia, D. Vertical stability and its implications for the SPARC tokamak in 64th Annual Meeting of the APS Division of Plasma Physics (2022).
Halfmoon, M., Hatch, D. R., Kotschenreuther, M., Mahajan, S. M., Nelson, A. O., Kolemen, E., Laggner, F. M., Diallo, A., Hassan, E., Curie, M. & Groebner, R. J. Analysis of gyrokinetic microinstabilities driving anomalous losses in DIII-D pedestal region in 2022 Sherwood Fusion Theory Conference (2022).
Nelson, A. O., Hyatt, A., Wehner, W., Barr, J. & Paz-Soldan, C. Establishing vertical control of diverted Neg-D discharges in DIII-D in 26th Workshop on MHD Stability and Control (2022).
Nelson, A. O., Paz-Soldan, C. & Saarelma, S. H-mode inhibition: Using shape to destabilize infinite-n ballooning modes in reactor conditions in 64th Annual Meeting of the APS Division of Plasma Physics (2022).
Nelson, A. O., Paz-Soldan, C. & Saarelma, S. Suppressing the LH transition via shape-based ballooning mode destabilization in 2022 H-mode Workshop (2022).
Nelson, A. O., Paz-Soldan, C., Wilson, H. & Saarelma, S. Preventing H-mode with Negative Triangularity to Improve Exhaust Handling at High Core Plasma Performance in 64th Annual Meeting of the APS Division of Plasma Physics (2022).
Perks, C. J., Frank, S., Cavallaro, A. J., Nelson, A. O., Qian, T., Rutkowski, A., Rodriguez- Fernandez, P., Reiman, A., Freidberg, J. P. & Whyte, D. G. A pulsed, radiative L-mode scenario for application in an ARC-class device in 2022 US Transport Task Force Workshop (2022).
Schmitz, L., Callahan, K., Zeng, L., Rhodes, T. L., Austin, M. E., Yan, Z., McKee, G. R., Thome, K. E., Marinoni, A., Nelson, A. O. & Paz-Soldan, C. H-mode Access and Limit Cycle Oscillations in DIII-D Negative Triangularity Plasmas in 64th Annual Meeting of the APS Division of Plasma Physics (2022).
Shousha, R., Ferron, J. R., Xing, Z. A., Nelson, A. O., Erickson, K. G. & Kolemen, E. Improved Real-time Equilibrium Reconstruction with Kinetic Constraints on DIII-D and NSTX-U in 64th Annual Meeting of the APS Division of Plasma Physics (2022).
Song, J., Paz-Soldan, C., Nelson, A. O. & Lee, J. Investigation of negative triangularity plasma in terms of the n=0 resistive wall mode in 64th Annual Meeting of the APS Division of Plasma Physics (2022).
Sweeny, R. & et. al. SPARC MHD Stability and the Error Field Strategy in 26th Workshop on MHD Stability and Control (2022).
Wai, J. T., Battaglia, D. J., Garnier, D., Looby, T., Nelson, A. O. & Kolemen, E. Startup scenario development for SPARC in 64th Annual Meeting of the APS Division of Plasma Physics (2022).
Wilson, H., Nelson, A. O. & Paz-Soldan, C. Modeling high radiation fraction L-mode plasmas in multiple configurations in 2022 H-Mode Workshop (2022).
Wilson, H., Nelson, A. O. & Paz-Soldan, C. Modeling high radiation fraction L-mode plasmas in multiple configurations in 64th Annual Meeting of the APS Division of Plasma Physics (2022).

2021

Halfmoon, M., Hatch, D., Kotschenreuther, M., Mahajan, S., Nelson, A. O., Kolemen, E., Lag- gner, F. M., Diallo, A., Hassan, E., Curie, M. & Groebner, R. J. Analysis of gyrokinetic microin- stabilities driving anomalous losses in DIII-D pedestal region. 63rd Annual Meeting of the APS Division of Plasma Physics (2021).
Halfmoon, M., Hatch, D., Kotschenreuther, M., Mahajan, S., Nelson, A. O., Kolemen, E., Lag- gner, F. M., Diallo, A., Hassan, E., Curie, M. & Groebner, R. J. Analysis of gyrokinetic microin- stabilities driving anomalous losses in the DIII-D pedestal region in 2021 US Transport Task Force Workshop (2021).
Hassan, E., Hatch, D. R., Merlo, G., Nelson, A. O., Groebner, R. J., Mahajan, S. M., Curie, M., Halfmoon, M. R., Kotschenreuther, M. T. & Diallo, A. Anomalous Heat Transport of Microtearing Modes in DIII-D H-mode Pedestals in 2021 Sherwood Fusion Theory Conference (2021).
Jalalvand, A., Kaptanoglu, A., Garcia, A. V., Nelson, A. O., Abbate, J. A., Austin, M. E., Verdoolaege, G., Brunton, S. L., Heidbrink, W. W. & Kolemen, E. Data-driven models for Alfvén eigenmode classification based on high resolution ECE diagnostics at DIII-D. 63rd Annual Meeting of the APS Division of Plasma Physics (2021).
Kaptanoglu, A., Jalalvand, A., Garcia, A. V., Nelson, A. O., Abbate, J., Verdoolaege, G., Brunton, S. L., Heidbrink, W. W. & Kolemen, E. Spatially-localized Alfvén eigenmode classification using convolutional neural networks. 63rd Annual Meeting of the APS Division of Plasma Physics (2021).
Kim, S. K., Shousha, R., Hahn, S. H., Nelson, A. O., Wai, J., Yang, S. M., Park, J.-K., Jeon, Y. M., In, Y., Lee, J. H., Kim, J., Na, Y.-S. & Kolemen, E. Optimization of H-mode pedestal by adaptive ELM control using 3D fields. 5th Asia-Pacific Conference on Plasma Physics (2021).
Kim, S., Shousha, R., Hahn, S. H., Nelson, A. O., Wai, J., Yang, S. M., Park, J. K., Jeon, Y. M., In, Y., Na, Y.-S., Lee, J. H., Kim, J. & Kolemen, K. Optimizing Tokamak Pedestal Confinement via Adaptive ELM Control Using 3D Fields in Korean Physical Society Spring Meeting (2021).
Kim, S., Shousha, R., Hahn, S., Nelson, A. O., Wai, J. T., Yang, S., Park, J.-K., Nazikian, R. M., Hu, Q., Jeon, Y., In, Y., Lee, J., Kim, J., Na, Y.-S. & Kolemen, E. Optimizing edge confinement and stability via adaptive ELM control using RMPs. 63rd Annual Meeting of the APS Division of Plasma Physics (2021).
Laggner, F. M., Rosenthal, A. M., Odstricil, T., Bortolon, A., Wilks, T. M., Hughes, J. W., Haskey, S. R., Effenberg, F., Abbate, J., Nelson, A. O., Xing, Z. A., Shafer, M. W. & Groth, M. Poloidal Asymmetries Of The Main Chamber Particle Source In DIII-D in 63rd Annual Meeting of the APS Division of Plasma Physics (2021).
Nelson, A. O. Current based experimental determination of inter-ELM pedestal MTMs in 25th Joint EU-US Transport Task Force Meeting 25th Joint EU-US Transport Task Force Meeting (2021).
Nelson, A. O., Laggner, F. M., Diallo, A., Smith, D. R., Xing, Z. A., Shousha, R. & Kolemen, E. Direct Identification of Microtearing Modes in the H-mode Pedestal via Current Profile Perturba- tions. 63rd Annual Meeting of the APS Division of Plasma Physics (2021).
Nelson, A. O., Paz-Soldan, C., Song, J., Lee, J., Barr, J., Eldon, D. & Welander, A. S. Stability of the n=0 resitive wall mode in a negative triangularity DIII-D in 25th Workshop on MHD Stability Control (2021).
Nelson, A. O., Xing, Z. A., Izacard, O., Laggner, F. M. & Kolemen, E. Interpretative SOL modeling and ELM-synchronization for full shots in DIII-D in 24th International Conference on Plasma Surface Interactions in Controlled Fusion Devices (2021).
O’Sullivan, S., Nelson, A. O., Bortolon, A. & Kolemen, E. Correlations between NBI blips and ELM triggers in tokamaks. 63rd Annual Meeting of the APS Division of Plasma Physics (2021).
Panici, D., Nelson, A. O. & Kolemen, E. Investigating ELM Pacing by Vertical Oscillations on DIII-D. 63rd Annual Meeting of the APS Division of Plasma Physics (2021).
Perks, C. J., Frank, S., Nelson, A. O., Cavallaro, A., Rutkowski, A., Qian, T., Whyte, D. G., Rodriguez-Fernandez, P. & Reiman, A. A pulsed, radiative L-mode scenario for application in an ARC-class deviceA pulsed, radiative L-mode scenario for application in an ARC-class device. 63rd Annual Meeting of the APS Division of Plasma Physics (2021).
Shousha, R., Ferron, J. R., Xing, Z. A., Nelson, A. O., Erickson, K. G. & Kolemen, E. Improved Real-time Equilibrium Reconstruction with Kinetic Constraints on DIII-D. 63rd Annual Meeting of the APS Division of Plasma Physics (2021).
Shousha, R., Kim, S., Erickson, K., Hahn, S., Nelson, A. O., Wai, J. T., Yang, S., Park, J.-K. & Kolemen, E. Feedback Adaptive ELM Control towards (ITER) long pulse ELM suppression and its application to KSTAR. 63rd Annual Meeting of the APS Division of Plasma Physics (2021).
Wilson, H., Nelson, A. O., Paz-Soldan, C. & Whyte, D. G. Optimizing fusion power balance using HTS magnets, negative triangularity, and high-Z impurities. 63rd Annual Meeting of the APS Division of Plasma Physics (2021).
Xing, Z. A., Nelson, A. O., Izacard, O., Jarvinen, A., Umansky, M., Humphreys, D. A. & Kole- men, E. Automated interpretive UEDGE simulations for DIII-D. 63rd Annual Meeting of the APS Division of Plasma Physics (2021).
Xing, Z. A., Nelson, A. O., Izacard, O., Jarvinen, A. E., Umansku, M. V., Humphreys, D. A. & Kolemen, E. Sensitivity analysis of cross-field transport coeffcients with autoUEDGE. 63rd Annual Meeting of the APS Division of Plasma Physics (2021).
Xing, Z., Izacard, O., Austin, M., Marinoni, A., Nelson, A. O., Meneghini, O., Eldon, D., Uman- sky, M. & Kolemen, E. Automatic interpretive UEDGE analysis for DIII-D in 24th International Conference on Plasma Surface Interactions in Controlled Fusion Devicesonal Conference on Plasma Surface Interactions in Controlled Fusion Devices (2021).

2020

Halfmoon, M. R., Hatch, D. R., Kotschenreuther, M. T., Mahajan, S. M., Hassan, E., Nelson, A. O., Kolemen, E., Laggner, F. M., Diallo, A. & Groebner, R. J. Gyrokinetic Analysis of Inter- ELM Transport Mechanisms in DIII-D Pedestals in 2020 US Transport Task Force Workshop (2020).
Halfmoon, M., Hatch, D., Kotschenreuther, M., Mahajan, S., Nelson, A. O., Kolemen, E., Lag- gner, F., Diallo, A., Hassan, E., Curie, M. & Groebner, R. Microtearing instabilities driving anoma- lous heat loss in the pedestal region of DIII-D discharges in 62nd Annual Meeting of the APS Division of Plasma Physics (2020).
Kolemen, E., Shousha, R., Nelson, A. O., Logan, N. & Park, J. Adaptive ELM Control and Real-Time Feedback MHD Spectroscopy at KSTAR in 62nd Annual Meeting of the APS Division of Plasma Physics (2020).
Nelson, A. O., Laggner, F. M., Diallo, A., Yan, Z. & Kolemen, E. Experimental characterization of turbulent modes in the DIII-D H-mode pedestal in 62nd Annual Meeting of the APS Division of Plasma Physics (2020).
Shousha, R., Ferron, J., Xing, Z. A., Nelson, A. O., Erickson, K. & Kolemen, E. Real-time Equilibrium Reconstruction with Kinetic Constraints on DIII-D in 62nd Annual Meeting of the APS Division of Plasma Physics (2020).
Shousha, R., Kim, S. K., Laggner, F. M., Eldon, D., Nelson, A. O., Hahn, S. H., Park, J. K., Yang, S. M., Paz-Soldan, C., Evans, T. E., Fenstermacher, M. E., Grierson, B. A., Hu, Q., Humphreys, D. A., Hyatt, A. W., Nazikian, R., Meneghini, O., Snyder, P. B., Unterberg, E. A., Erickson, K. G. & Kolemen, E. Integrated ELM Control in 4th Asia-Pacific Conference on Plasma Physics (2020).
Strait, E. J., Munaretto, S., Sweeney, R. M., Logan, N. C. & Nelson, A. O. Electromagnetic Torque Measurements in DIII-D through Internal/External Magnetic Field Decomposition in 62nd Annual Meeting of the APS Division of Plasma Physics (2020).
Wai, J. T., Vail, P. J., Nelson, A. O., Xing, Z. A., Lasnier, C., Gray, T. K. & Kolemen, E. Infrared Constrained Equilibrium Reconstruction and Application to Snowflake Divertor Studies in 62nd Annual Meeting of the APS Division of Plasma Physics (2020).
Xing, Z., Nelson, A. O., Izacard, O., Austin, M. E., Marinoni, A., Jarvinen, A., Umansky, M. & Kolemen, E. Automating Interpretive Edge Transport Modeling on DIII-D with UEDGE in 62nd Annual Meeting of the APS Division of Plasma Physics (2020).

2010 - 2019

Hatch, D., Kotschenreuther, M., Mahajan, S., Halfmoon, M., Hassan, E., Merlo, G., Michoski, C., Canik, J., Joseph, I., Umansky, M., Guttenfelder, W., Diallo, A., Groebner, R., Nelson, A. O., Laggner, F., Hughes, J. & Mordijck, S. Understanding pedestal transport via combined gyrokinetic and edge modeling in 61st Annual Meeting of the APS Division of Plasma Physics (2019).
Laggner, F. M., Eldon, D., Nelson, A. O., Humphreys, D., Hyatt, A. W., Snyder, P. B., Knolker, M. & Kolemen, E. Improved density feedback control range and response time on DIII-D using 3D fields in 61st Annual Meeting of the APS Division of Plasma Physics (2019).
Nelson, A. O., Laggner, F. M., Diallo, A. & Kolemen, E. Characterization of pedestal modes through fast vertical oscillations at DIII-D in 61st Annual Meeting of the APS Division of Plasma Physics (2019).
Nelson, A. O., Laggner, F. M., Izacard, O., Sontag, A. C., Groebner, R., Eldon, D., Grierson, B., Shafer, M. W., Leonard, A., Shiraki, D., Kolemen, E. & Team, D.-D. On the role of particle source location in setting the H-mode pedestal structure in 17th International Workshop on H-mode Physics and Transport Barriers (2019).
Buzi, L., Yang, Y., Nelson, A. O., Kaita, R. & Koel, B. E. Sputtering characteristics of Li-C-O compounds and deuterium intake in 23rd International Conference on Plasma Surface Interactions in Controlled Fusion Devices (2018).
Laggner, F., Kolemen, E., Diallo, A., Groebner, R., Barada, K., Nelson, A. O., Osborne, T. & DIII-D Team, T. Vertical plasma oscillations as a tool to perturb the pedestal in the DIII-D tokamak in 60th Annual Meeting of the APS Division of Plasma Physics (2018).
Nelson, A. O., Buzi, L., Yang, Y., Kaita, R. & Koel, B. E. Sputtering and retention of D2 in thin Li and LiD films in 23rd International Conference on Plasma Surface Interactions in Controlled Fusion Devices (2018).
Nelson, A. O., Kolemen, E., Laggner, F., Izacard, O., Groebner, R., Eldon, D., Shafer, M., Leonard, A., Shiraki, D. & Sontag, A. Pedestal fueling variation in a closed divertor configuration at DIII-D in 60th Annual Meeting of the APS Division of Plasma Physics (2018).
Sontag, A., Shafer, M., Shiraki, D., Laggner, F. & Nelson, A. O. SOLPS modeling of neutral fueling effects on pedestal structure in DIII-D in 60th Annual Meeting of the APS Division of Plasma Physics (2018).
Yang, Y., Buzi, L., Nelson, A. O., Kaita, R. & Koel, B. E. Long-Term Deuterium Retention in Lithium and Lithium Compounds in 23rd International Conference on Plasma Surface Interactions in Controlled Fusion Devices (2018).
Buzi, L., Nelson, A. O., Yang, Y., Kaita, R. & Koel, B. E. Hydrogen retention in Li and Li-C-O films in 59th Annual Meeting of the APS Division of Plasma Physics (2017).
Nelson, A. O., Buzi, L., Kaita, R. & Koel, B. Deuterium sputtering of Li and Li-O films in 59th Annual Meeting of the APS Division of Plasma Physics (2017).