Three-dimensional scrape off layer transport in the helically symmetric experiment HSX

A. R. Akerson, A. Bader, C. C. Hegna, O. Schmitz, L. A. Stephey, D. T. Anderson, F. S. B. Anderson, K. M. Likin
HSX Plasma Laboratory, University of Wisconsin-Madison, Madison, WI

File: Three-dimensional-scrape-off-layer-transport-in-the-helically-symmetric-experiment-HSX_Akerson_et-al_2016.pdf

Plasma Physics and Controlled Fusion, Volume 58, June 2016
A. R. Akerson, A. Bader, C. C. Hegna, O. Schmitz, L. A. Stephey, D. T. Anderson, F. S. B. Anderson, K. M. Likin
HSX Plasma Laboratory, University of Wisconsin-Madison, Madison, WI

Impact of magnetic islands in the plasma edge on particle fueling and exhaust in the HSX and W7-X stellarators

L. Stephey, A. Bader, F. Effenberg, O. Schmitz, D. T. Anderson, F. S. B. Anderson, H. Frerichs, I. Waters
University of Wisconsin-Madison, Madison, WI, USA
G. A. Wurden
Los Alamos National Laboratory, Los Alamos, NM, USA
C. Biedermann, A. Dinklage, Y. Feng, G. Fuchert, J. Geiger, R. Konig, P. Kornejew, M. Krychowiak
Max-Planck Institut fur Plasmaphysik, Greifswald, Germany
J. H. Harris, J. D. Lore, E. A. Unterberg
Oak Ridge National Laboratory, Oak Ridge, TN

File: Impact-of-magnetic-islands-in-the-plasma-edge-on-particle-fueling-and-exhaust-in-the-HSX-and-W7-X-stellarators_Stephey_et-al_2018.pdf

Physics of Plasmas, Volume 25, May 2018
L. Stephey, A. Bader, F. Effenberg, O. Schmitz, D. T. Anderson, F. S. B. Anderson, H. Frerichs, I. Waters
University of Wisconsin-Madison, Madison, WI, USA
G. A. Wurden
Los Alamos National Laboratory, Los Alamos, NM, USA
C. Biedermann, A. Dinklage, Y. Feng, G. Fuchert, J. Geiger, R. Konig, P. Kornejew, M. Krychowiak
Max-Planck Institut fur Plasmaphysik, Greifswald, Germany
J. H. Harris, J. D. Lore, E. A. Unterberg
Oak Ridge National Laboratory, Oak Ridge, TN

Magnetic mesh generation and field line reconstruction for scrape-off layer and divertor modeling in stellarators

H. Frerichs, D. Boeyaert, K. A. Garcia
Department of Nuclear Engineering & Engineering Physics, University of Wisconsin-Madison, Madison, WI, USA
Y. Feng
Max-Planck Institut fur Plasmaphysik, Greifswald, Germany

Plasma Physics and Controlled Fusion, Volume 67, March 2025
H. Frerichs, D. Boeyaert, K. A. Garcia
Department of Nuclear Engineering & Engineering Physics, University of Wisconsin-Madison, Madison, WI, USA
Y. Feng
Max-Planck Institut fur Plasmaphysik, Greifswald, Germany

Electron density profile and associated fluctuation measurements using a microwave reflectometer on HSX

X. Han, M. Richardson, K. M. Likin, H. O. M. Hillbrecht, B. Geiger, W. Goodman, A. Wolfmeister, B. Knowles, R. Wagner and the HSX Team
HSX Plasma Laboratory, University of Wisconsin-Madison, Madison, WI, USA

Plasma Physics and Controlled Fusion, Volume 67, March 2025
X. Han, M. Richardson, K. M. Likin, H. O. M. Hillbrecht, B. Geiger, W. Goodman, A. Wolfmeister, B. Knowles, R. Wagner and the HSX Team
HSX Plasma Laboratory, University of Wisconsin-Madison, Madison, WI, USA

Towards improved neutral exhaust in the HSX stellarator

D. Boeyaert, K. A. Garcia, H. Frerichs, M. J. Gerard, B. Geiger, O. Schmitz
Department of Nuclear Engineering and Engineering Physics, University of Wisconsin-Madison, Madison, WI, USA
A. Bader, J. Schmitt
Type One Energy Inc., Madison, WI, USA
R. Davies
Max Planck Institute for Plasma Physics, Greifswald, Germany

File: Towards-improved-neutral-exhaust-in-the-HSX-stellarator-Boeyaert_et-al_2025.pdf

Nuclear Materials and Energy, Volume 42, January 2025
D. Boeyaert, K. A. Garcia, H. Frerichs, M. J. Gerard, B. Geiger, O. Schmitz
Department of Nuclear Engineering and Engineering Physics, University of Wisconsin-Madison, Madison, WI, USA
A. Bader, J. Schmitt
Type One Energy Inc., Madison, WI, USA
R. Davies
Max Planck Institute for Plasma Physics, Greifswald, Germany

Resilient stellarator divertor characteristics in the Helically Symmetric eXperiment

K. A. Garcia, D. Boeyaert, H. Frerichs, M. J. Gerard, O. Schmitz
Department of Nuclear Engineering and Engineering Physics, University of Wisconsin-Madison, Madison, WI, USA
A. Bader
Type One Energy Inc., Madison, WI, USA
A. H. Boozer
Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY, USA
A. Punjabi
Department of Mathematics, Hampton University, Hampton, VA, USA

File: Resilient-stellarator-divertor-characteristics-in-the-Helically-Symmetric-Experiment_Garcia_et-al_2025.pdf

Plasma Physics and Controlled Fusion, Volume 67, February 2025
K. A. Garcia, D. Boeyaert, H. Frerichs, M. J. Gerard, O. Schmitz
Department of Nuclear Engineering and Engineering Physics, University of Wisconsin-Madison, Madison, WI, USA
A. Bader
Type One Energy Inc., Madison, WI, USA
A. H. Boozer
Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY, USA
A. Punjabi
Department of Mathematics, Hampton University, Hampton, VA, USA

Vacuum vessel design with lofted toroidal surfaces for a QHS configuration

John Schmitt
Type One Energy Inc., Madison, WI, USA
Auburn University, Auburn, AL, USA
Dieter Boeyaert, Heinke Frerichs, Kelly Garcia
University of Wisconsin, Madison, WI, USA
Aaron Bader
Type One Energy Inc., Madison, WI, USA
University of Wisconsin, Madison, WI, USA
Robert Davies
Max Planck Institute for Plasma Physics, Greifswald, Germany
Jacob Nesbit
Physical Science Lab, Madison, WI, USA

File: Vacuum-vessel-design-with-lofted-toroidal-surfaces-for-a-QHS-configuration_Schmitt_et-al_2024.pdf

Fusion Engineering and Design, Volume 211, December 2024
John Schmitt
Type One Energy Inc., Madison, WI, USA
Auburn University, Auburn, AL, USA
Dieter Boeyaert, Heinke Frerichs, Kelly Garcia
University of Wisconsin, Madison, WI, USA
Aaron Bader
Type One Energy Inc., Madison, WI, USA
University of Wisconsin, Madison, WI, USA
Robert Davies
Max Planck Institute for Plasma Physics, Greifswald, Germany
Jacob Nesbit
Physical Science Lab, Madison, WI, USA

Design and Construction of HSX: a Helically Symmetric Stellarator

A. F. Almagri, D. T. Anderson, F. S. B. Anderson, P. G. Matthews, T. L. Piccione, P. H. Probert, V. Sakaguchi, J. Shafii, L. J. Shohet, and J. N. Talmadge
Torsatron/Stellarator Laboratory, University of Wisconsin, Madison, Wisconsin 53703, USA
K. M. Likin
General Physics Institute, Moscow, Russian Federation
M. Takayama
Department of Quantum Science and Energy Engineering, Tohoku University, Sendai, Japan

File: Design-and-Construction-of-HSX-a-Helically-Symmetric-Stellarator_Almagri_et-al_1998.pdf

Journal of Plasma and Fusion Research SERIES, Volume 1, January 1998
A. F. Almagri, D. T. Anderson, F. S. B. Anderson, P. G. Matthews, T. L. Piccione, P. H. Probert, V. Sakaguchi, J. Shafii, L. J. Shohet, and J. N. Talmadge
Torsatron/Stellarator Laboratory, University of Wisconsin, Madison, Wisconsin 53703, USA
K. M. Likin
General Physics Institute, Moscow, Russian Federation
M. Takayama
Department of Quantum Science and Energy Engineering, Tohoku University, Sendai, Japan

On the effect of flux-surface shaping on trapped-electron modes in quasi-helically symmetric stellarators

M. J. Gerard, B. Geiger, J. M. Duff, B. J. Faber, C. C. Hegna, P. W. Terry
HSX Plasma Laboratory, University of Wisconsin, Madison, Wisconsin 53703, USA
M. J. Pueschel
Eindhoven University of Technology, 5600 MB Eindhoven, Netherlands
Dutch Institute for Fundamental Energy Research, 5612 AJ Eindhoven, Netherlands
Department of Physics and Astronomy, Ruhr-Universitat Bochum, 44780 Bochum, Germany
R. J. J. Mackenbach
Eindhoven University of Technology, 5600 MB Eindhoven, Netherlands
Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
Swiss Plasma Center, Ecole Polytechnique Federale de Lausanne, CH-1015 Lausanne, Switzerland

File: On-the-effect-of-flux-surface-shaping-on-trapped-electron-modes-in-quasi-helically-symmetric-stellarators_Gerard_Pueschel_Geiger_Mackenbach_Duff_Faber_Hegna_Terry_2024.pdf

Physics of Plasmas, Volume 31, May 2024
M. J. Gerard, B. Geiger, J. M. Duff, B. J. Faber, C. C. Hegna, P. W. Terry
HSX Plasma Laboratory, University of Wisconsin, Madison, Wisconsin 53703, USA
M. J. Pueschel
Eindhoven University of Technology, 5600 MB Eindhoven, Netherlands
Dutch Institute for Fundamental Energy Research, 5612 AJ Eindhoven, Netherlands
Department of Physics and Astronomy, Ruhr-Universitat Bochum, 44780 Bochum, Germany
R. J. J. Mackenbach
Eindhoven University of Technology, 5600 MB Eindhoven, Netherlands
Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
Swiss Plasma Center, Ecole Polytechnique Federale de Lausanne, CH-1015 Lausanne, Switzerland

Including the parallel mass flow in calculating the steady-state solutions and stability of the momentum balance equations for a quasisymmetric stellarator

Michaelides, D. N. and Talmadge, J. N.
HSX Plasma Laboratory, University of Wisconsin, Madison, Wisconsin 53703, USA

File: Including-the-parallel-mass-flow_quasisymmetric-stellarator_Michaelides_Talmadge_2024.pdf

Physics of Plasmas, Volume 31, February 2024
Michaelides, D. N. and Talmadge, J. N.
HSX Plasma Laboratory, University of Wisconsin, Madison, Wisconsin 53703, USA

Kinetic ballooning mode turbulence in low-average-magnetic-shear equilibria

I. J. McKinney, B. J. Faber, C. C. Hegna, P. W. Terry
HSX Plasma Laboratory, University of Wisconsin, Madison, Wisconsin 53703, USA
M. J. Pueschel
Eindhoven University of Technology, 5600 MB Eindhoven, Netherlands
Dutch Institute for Fundamental Energy Research, 5612 AJ Eindhoven, Netherlands
A. Ishizawa
Graduate School of Energy Science, Kyoto University, Kyoto, Japan

File: Kinetic-ballooning-mode-turbulence-in-low-average-magnetic-shear-equilibria_McKinney_et-al_2021.pdf

Journal of Plasma Physics, Volume 87, Issue 3, 2021
I. J. McKinney, B. J. Faber, C. C. Hegna, P. W. Terry
HSX Plasma Laboratory, University of Wisconsin, Madison, Wisconsin 53703, USA
M. J. Pueschel
Eindhoven University of Technology, 5600 MB Eindhoven, Netherlands
Dutch Institute for Fundamental Energy Research, 5612 AJ Eindhoven, Netherlands
A. Ishizawa
Graduate School of Energy Science, Kyoto University, Kyoto, Japan

Optimizing the HSX stellarator for microinstability by coil-current adjustments

M. J. Gerard, B. Geiger, A. Bader, C. C. Hegna, B. J. Faber, P. W. Terry, S. T. A. Kumar
HSX Plasma Laboratory, University of Wisconsin, Madison, Wisconsin 53703, USA
M. J. Pueschel
Eindhoven University of Technology, 5600 MB Eindhoven, Netherlands
Dutch Institute for Fundamental Energy Research, 5612 AJ Eindhoven, Netherlands
J. C. Schmitt
Auburn University, Auburn, AL 36849, USA

File: Optimizing-the-HSX-Stellarator-for-microinstability-by-coil-current-adjustments_Gerard_et-al_2023.pdf

Nuclear Fusion, Volume 63, 2023
M. J. Gerard, B. Geiger, A. Bader, C. C. Hegna, B. J. Faber, P. W. Terry, S. T. A. Kumar
HSX Plasma Laboratory, University of Wisconsin, Madison, Wisconsin 53703, USA
M. J. Pueschel
Eindhoven University of Technology, 5600 MB Eindhoven, Netherlands
Dutch Institute for Fundamental Energy Research, 5612 AJ Eindhoven, Netherlands
J. C. Schmitt
Auburn University, Auburn, AL 36849, USA

Upgrade of the helically symmetric experiment Thomson scattering diagnostic suite

W. R. Goodman, E. R. Scott, Z. Keith, L. Singh, D. T. Anderson
HSX Plasma Laboratory, University of Wisconsin, Madison, Wisconsin 53703, USA

File: Upgrade-of-the-helically-symmetric-experiment-thomson-scattering-diagnostic-suite_Goodman_Scott_Keith_et-al_2022.pdf

Review of Scientific Instruments, Volume 93, 2002
W. R. Goodman, E. R. Scott, Z. Keith, L. Singh, D. T. Anderson
HSX Plasma Laboratory, University of Wisconsin, Madison, Wisconsin 53703, USA

Parallel flow driven by electron cyclotron heating in the helically symmetric experiment

Y. Yamamoto, S. Murakami, C. C. Chang
Department of Nuclear Engineering, Kyoto University, Japan
S. T. A. Kumar, J. N. Talmadge, K. M. Likin, D. T. Anderson
HSX Plasma Lab, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, USA

File: Parallel-flow-driven-by-electron-cyclotron-heating-in-HSX_Yamamoto_et-al_2022.pdf

Nuclear Fusion, Volume 62, 2022
Y. Yamamoto, S. Murakami, C. C. Chang
Department of Nuclear Engineering, Kyoto University, Japan
S. T. A. Kumar, J. N. Talmadge, K. M. Likin, D. T. Anderson
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706

Estimation of the j x B force produced by electron cyclotron heating in HSX plasma

Plasma and Fusion Research, Volume 14, 2019
Y. Yamamoto, S. Murakami, C.-C. Chang
Kyoto University, Kyoto, Japan
S. T. A. Kumar, J. N. Talmadge, K. Likin, D. T. Anderson
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI, USA

File: Estimation-of-the-j-x-B-force-produced-by-electron-cyclotron-heating-in-HSX-plasma_Yamamoto_et-al_2019.pdf

Plasma and Fusion Research, Volume 14, 2019
Y. Yamamoto, S. Murakami, C.-C. Chang
Kyoto University, Kyoto, Japan
S. T. A. Kumar, J. N. Talmadge, K. Likin, D. T. Anderson
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI, USA

Saturation and nonlinear electromagnetic stabilization of ITG turbulence

Physics of Plasmas, Volume 26, August 2019
G. G. Whelan, P. W. Terry, I. J. McKinney
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI, USA
M. J. Pueschel
Institute for Fusion Studies, University of Texas at Austin, Austin, TX, USA
J. Citrin
DIFFER-Dutch Institute for Fundamental Energy Research, 5612 AJ Eindhoven, The Netherlands
W. Guttenfelder
Princeton Plasma Physics Laboratory, Princeton, NJ, USA
H. Doerk
Max-Planck Institut für Plasmaphysik, 85748 Garching, Germany

File: Saturation-and-nonlinear-electromagnetic-stabilization-of-ITG-turbulence_Whelan_et-al_2019.pdf

Physics of Plasmas, Volume 26, August 2019
G. G. Whelan, P. W. Terry, I. J. McKinney
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI, USA
M. J. Pueschel
Institute for Fusion Studies, University of Texas at Austin, Austin, TX, USA
J. Citrin
DIFFER-Dutch Institute for Fundamental Energy Research, 5612 AJ Eindhoven, The Netherlands
W. Guttenfelder
Princeton Plasma Physics Laboratory, Princeton, NJ, USA
H. Doerk
Max-Planck Institut für Plasmaphysik, 85748 Garching, Germany

Stellarator equilibria with reactor relevant energetic particle losses

Journal of Plasma Physics, Volume 85, October 2019
A. Bader, D. T. Anderson, B. J. Faber, C. C. Hegna, K. M. Likin, J. N. Talmadge
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI, USA
M. Drevlak
IPP-Greifswald, Greifswald, Germany
J. C. Schmitt
Auburn University, Auburn, AL, USA

File: Stellarator-equilibria-with-reactor-relevant-energetic-particle-losses_Bader_et-al_2019.pdf

Journal of Plasma Physics, Volume 85, October 2019
A. Bader, D. T. Anderson, B. J. Faber, C. C. Hegna, K. M. Likin, J. N. Talmadge
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI, USA
M. Drevlak
IPP-Greifswald, Greifswald, Germany
J. C. Schmitt
Auburn University, Auburn, AL, USA

Optimization of finite-build stellarator coils

Journal of Plasma Physics, Volume 86, August 2020
L. Singh, T. G. Kruger, A. Bader, D. T. Anderson
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI, USA
C. Zhu, S. R. Hudson
Princeton Plasma Physics Laboratory, Princeton University, Princeton, NJ, USA

File: Optimization-of-finite-build-stellarator-coils_Singh_et-al_2020.pdf

Journal of Plasma Physics, Volume 86, August 2020
L. Singh, T. G. Kruger, A. Bader, D. T. Anderson
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI, USA
C. Zhu, S. R. Hudson
Princeton Plasma Physics Laboratory, Princeton University, Princeton, NJ, USA

Advancing the physics basis for quasi-helically symmetric stellarators

Journal of Plasma Physics, Volume 86, October 2020
A. Bader, B. J. Faber, J. M. Duff, H. Frerichs, C. C. Hegna, I. J. McKinney
Department of Engineering Physics, University of Wisconsin-Madison, Madison, WI, USA
J. C. Schmitt
Department of Physics, Auburn University, Auburn, AL, USA
D. T. Anderson, T. G. Kruger, L. Singh
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI, USA
M. Drevlak
Max-Planck Institute for Plasma Physics, Greifswald, Germany
M. Landreman
Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, MD, USA
J. M. Schroeder, P. W. Terry
Department of Physics, University of Wisconsin-Madison, Madison, WI, USA
A. S. Ware
Department of Physics and Astronomy, University of Montana, Missoula, MT, USA

File: Advancing-the-physics-basis-for-quasi-helically-symmetric-stellarators_Bader_et-al_2020.pdf

Journal of Plasma Physics, Volume 86, October 2020
A. Bader, B. J. Faber, J. M. Duff, H. Frerichs, C. C. Hegna, I. J. McKinney
Department of Engineering Physics, University of Wisconsin-Madison, Madison, WI, USA
J. C. Schmitt
Department of Physics, Auburn University, Auburn, AL, USA
D. T. Anderson, T. G. Kruger, L. Singh
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI, USA
M. Drevlak
Max-Planck Institute for Plasma Physics, Greifswald, Germany
M. Landreman
Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, MD, USA
J. M. Schroeder, P. W. Terry
Department of Physics, University of Wisconsin-Madison, Madison, WI, USA
A. S. Ware
Department of Physics and Astronomy, University of Montana, Missoula, MT, USA

Constrained stellarator coil curvature optimization with FOCUS

Journal of Plasma Physics, Volume 87, Issue 2, April 2021
T. G. Kruger, A. Bader, D. T. Anderson, L. Singh
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706
C. Zhu
Princeton Plasma Physics Laboratory, Princeton, NJ, USA

File: Constrained-stellarator-coil-curvature-optimization-with-FOCUS_Kruger_et-al_2021.pdf

Journal of Plasma Physics, Volume 87, Issue 2, April 2021
T. G. Kruger, A. Bader, D. T. Anderson, L. Singh
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706
C. Zhu
Princeton Plasma Physics Laboratory, Princeton, NJ, USA

Comparison of local and global gyrokinetic calculations of collisionless zonal flow damping in quasi-symmetric stellarators

Physics of Plasmas, Volume 28, April 2021
J. Smoniewski, J. N. Talmadge
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706
E. Sánchez, I. Calvo
Laboratorio Nacional de Fusión, CIEMAT, 28040 Madrid, Spain
M. J. Pueschel
Dutch Institute for Fundamental Energy Research, 5612 AJ Eindhoven, The Netherlands
Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
Institute for Fusion Studies, University of Texas at Austin, Austin, TX, USA

File: Comparison-of-local-and-global-gyrokinetic-calculations-of-collisionless-zonal-flow-damping-in-quasi-symmetric-stellarators_Smoniewski_et-al_2021.pdf

Physics of Plasmas, Volume 28, April 2021
J. Smoniewski, J. N. Talmadge
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706
E. Sánchez, I. Calvo
Laboratorio Nacional de Fusión, CIEMAT, 28040 Madrid, Spain
M. J. Pueschel
Dutch Institute for Fundamental Energy Research, 5612 AJ Eindhoven, The Netherlands
Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
Institute for Fusion Studies, University of Texas at Austin, Austin, TX, USA

Development of beam emission spectroscopy in the helically symmetric experiment stellarator

Review of Scientific Instruments, Volume 92, June 2021
S. Kobayashi, S. Ohshima
Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
S. T. A. Kumar, F. S. B. Anderson, C. B. Deng, K. M. Likin, J. N. Talmadge, D. T. Anderson
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706
C. B. Deng
Department of Physics, University of California, Los Angeles, California, USA

File: Development-of-beam-emission-spectroscopy-in-the-helically-symmetric-experiment-stellarator_Kobayashi_et-al_2021.pdf

Review of Scientific Instruments, Volume 92, June 2021
S. Kobayashi, S. Ohshima
Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
S. T. A. Kumar, F. S. B. Anderson, C. B. Deng, K. M. Likin, J. N. Talmadge, D. T. Anderson
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706
C. B. Deng
Department of Physics, University of California, Los Angeles, California, USA

Modeling of energetic particle transport in optimized stellarators

Nuclear Fusion, Volume 61, October 2021
A. Bader, D. T. Anderson, B. J. Faber, C. C. Hegna
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706
M. Drevlak, S. Henneberg
Max-Planck Institut für Plasmaphysik, Greifswald, Germany
M. Landreman
University of Maryland, College Park, MD, USA
J. C. Schmitt
Auburn University, Auburn, AL, USA
Y. Suzuki
Hiroshima University, Higashi-Hiroshima, Japan
A. Ware
University of Montana, Missoula, MT, USA

File: Modeling-of-energetic-particle-transport-in-optimized-stellarators_Bader_et-al_2021.pdf

Nuclear Fusion, Volume 61, October 2021
A. Bader, D. T. Anderson, B. J. Faber, C. C. Hegna
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706
M. Drevlak, S. Henneberg
Max-Planck Institut für Plasmaphysik, Greifswald, Germany
M. Landreman
University of Maryland, College Park, MD, USA
J. C. Schmitt
Auburn University, Auburn, AL, USA
Y. Suzuki
Hiroshima University, Higashi-Hiroshima, Japan
A. Ware
University of Montana, Missoula, MT, USA

Gyrokinetic simulations in stellarators using different computational domains

Nuclear Fusion, Volume 61, October 2021
E. Sánchez, J. M. García-Regaña, A. González-Jerez, I. Calvo
Laboratorio Nacional de Fusión/CIEMAT, Avda Complutense 40, 28040, Madrid, Spain
A. Bañón Navarro
Max-Planck Institut für Plasmaphysik, Garching, Germany
J. H. E. Proll, C. Mora Moreno
Department of Applied Physics, Eindhoven University of Technology, Eindhoven, Netherlands
R. Kleiber, J. Riemann
Max-Planck Institut für Plasmaphysik, Greifswald, Germany
J. Smoniewski
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706
M. Barnes, F. I. Parra
Rudolf Peierls Centre for Theoretical Physics, University of Oxford, Oxford, United Kingdom

File: Gyrokinetic-simulations-in-stellarators-using-different-computational-domains_Sanchez_et-al_2021.pdf

Nuclear Fusion, Volume 61, October 2021
E. Sánchez, J. M. García-Regaña, A. González-Jerez, I. Calvo
Laboratorio Nacional de Fusión/CIEMAT, Avda Complutense 40, 28040, Madrid, Spain
A. Bañón Navarro
Max-Planck Institut für Plasmaphysik, Garching, Germany
J. H. E. Proll, C. Mora Moreno
Department of Applied Physics, Eindhoven University of Technology, Eindhoven, Netherlands
R. Kleiber, J. Riemann
Max-Planck Institut für Plasmaphysik, Greifswald, Germany
J. Smoniewski
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706
M. Barnes, F. I. Parra
Rudolf Peierls Centre for Theoretical Physics, University of Oxford, Oxford, United Kingdom

Improving the stellarator through advances in plasma theory

Nuclear Fusion, Volume 61, September 2021 (Accepted)
C. C. Hegna, D. T. Anderson, A. Bader, T. A. Bechtel, J. M. Duff, B. J. Faber, T. G. Kruger, I. J. McKinney, P. W. Terry
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706
A. Bhattacharjee, M. Cole, S. R. Hudson, E. Paul, M. Zarnstorff, C. Zhu
Princeton Plasma Physics Laboratory, Princeton, NJ, USA
M. Drevlak
Max-Planck Institut für Plasmaphysik, Greifswald, Germany
M. Kotschenreuther
University of Texas, Austin, TX, USA
M. Landreman
University of Maryland, College Park, MD, USA
M. J. Pueschel
Eindhoven University of Technology, Eindhoven, The Netherlands
Dutch Institute for Fundamental Energy Research, Eindhoven, The Netherlands
J. S. Schmitt
Department of Physics, Auburn University, Auburn, AL, USA
A. S. Ware
Department of Physics, University of Montana, Missoula, MT, USA

Nuclear Fusion, Volume 61, September 2021 (Accepted)
C. C. Hegna, D. T. Anderson, A. Bader, T. A. Bechtel, J. M. Duff, B. J. Faber, T. G. Kruger, I. J. McKinney, P. W. Terry
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706
A. Bhattacharjee, M. Cole, S. R. Hudson, E. Paul, M. Zarnstorff, C. Zhu
Princeton Plasma Physics Laboratory, Princeton, NJ, USA
M. Drevlak
Max-Planck Institut für Plasmaphysik, Greifswald, Germany
M. Kotschenreuther
University of Texas, Austin, TX, USA
M. Landreman
University of Maryland, College Park, MD, USA
M. J. Pueschel
Eindhoven University of Technology, Eindhoven, The Netherlands
Dutch Institute for Fundamental Energy Research, Eindhoven, The Netherlands
J. S. Schmitt
Department of Physics, Auburn University, Auburn, AL, USA
A. S. Ware
Department of Physics, University of Montana, Missoula, MT, USA

Laser blow-off with photodiode detection system at the helically symmetric experiment

Journal of Instrumentation, Volume 16, November 2021
J. F. Castillo, C. Clark, A. Bader, K. M. Likin, D. T. Anderson, B. Geiger, S. T. A. Kumar, and C. Swee
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706

File: Laser-blowoff-with-photodiode-detection-system-at-the-helically-symmetric-experiment_Castillo_et-al_2021.pdf

Journal of Instrumentation, Volume 16, November 2021
J. F. Castillo, C. Clark, A. Bader, K. M. Likin, D. T. Anderson, B. Geiger, S. T. A. Kumar, and C. Swee
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706

Impurity transport studies at the HSX stellarator using active and passive CVI spectroscopy

Plasma Physics and Controlled Fusion, Volume 64, November 2022
C. Swee, B. Geiger, S. T. A. Kumar, J. F. Castillo, A. Bader, and M. Gerard
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706
R. Dux
Max-Planck Institute for Plasma Physics, Boltzmannstr. 2, 85748 Garching, Germany

File: Impurity-transport-studies-at-the-HSX-stellarator-using-active-and-passive-CVI-spectroscopy_Swee_et-al_2022.pdf

Plasma Physics and Controlled Fusion, Volume 64, November 2022
C. Swee, B. Geiger, S. T. A. Kumar, J. F. Castillo, A. Bader, and M. Gerard
HSX Laboratory, Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706
R. Dux
Max-Planck Institute for Plasma Physics, Boltzmannstr. 2, 85748 Garching, Germany

Simulation Study of Neutral Beam Injection Heating in the HSX Plasma

Plasma and Fusion Research, Volume 14, Issue 7
Y. Morishita and S. Murakami
Kyoto University, Kyoto 615-8530, Japan
K. Likin and D.T. Anderson
HSX Stellarator, University of Wisconsin-Madison, Madison, WI, USA

File: DTA_NBI_HSX.pdf

Plasma and Fusion Research, Volume 14, Issue 7
Y. Morishita and S. Murakami
Kyoto University, Kyoto 615-8530, Japan
K. Likin and D.T. Anderson
HSX Stellarator, University of Wisconsin-Madison, Madison, WI, USA

Flow Velocity Measurements Using ChERS in the HSX Stellarator

Contributions to Plasma Physics, Volume 50, Issue 8
A. Briesemeister, K. Zhai, D. T. Anderson, F. S. B. Anderson, J. Lore, and J. N. Talmadge
HSX Stellarator, University of Wisconsin-Madison, Madison, WI, USA

File: Flow-Velocity-Measurements-Using-ChERS-in-the-HSX-Stellarator.pdf

Contributions to Plasma Physics, Volume 50, Issue 8
A. Briesemeister, K. Zhai, D. T. Anderson, F. S. B. Anderson, J. Lore, and J. N. Talmadge
HSX Stellarator, University of Wisconsin-Madison, Madison, WI, USA

Comparison of the Flows and Radial Electric Field in the HSX Stellarator to Neoclassical Calculations

Plasma Physics and Controlled Fusion, Volume 55, Issue 12
A. Briesemeister, K. Zhai, D.T. Anderson, F.S.B. Anderson and J.N. Talmadge
HSX Stellarator, University of Wisconsin-Madison, Madison, WI, USA

File: Comparison-of-the-flows-and-radial-electric-field-in-the-HSX-stellarator-to-neoclassical-calculations.pdf

Plasma Physics and Controlled Fusion, Volume 55, Issue 12
A. Briesemeister, K. Zhai, D.T. Anderson, F.S.B. Anderson and J.N. Talmadge
HSX Stellarator, University of Wisconsin-Madison, Madison, WI, USA

Measurement and Modeling of Electrode Biased Discharges in the HSX Stellarator

Presented at the 2004 IAEA Fusion Energy Conference, Vilamoura, Portugal, paper EX/8-3.
S.P. Gerhardt, A.F. Almagri, D.T. Anderson, F.S.B. Anderson, J.M. Canik, C. Deng, W. Guttenfelder, K.M. Likin, V. Sakaguchi, J.N. Talmadge, K. Zhai
HSX Stellarator, University of Wisconsin-Madison, USA
D. Brower
Electrical Engineering Department, University of California, Los Angeles, USA

File: Measurement-and-Modeling-of-Electrode-Biased-Discharges-in-the-HSX-Stellarator.pdf

Presented at the 2004 IAEA Fusion Energy Conference, Vilamoura, Portugal, paper EX/8-3
S.P. Gerhardt, A.F. Almagri, D.T. Anderson, F.S.B. Anderson, J.M. Canik, C. Deng, W. Guttenfelder, K.M. Likin, V. Sakaguchi, J.N. Talmadge, K. Zhai 
HSX Stellarator, University of Wisconsin-Madison, USA
D. Brower
Electrical Engineering Department, University of California, Los Angeles, USA

HSX as an example of a resilient non-resonant divertor

Physics of Plasmas, Volume 24, Issue 3, March 2017
A Bader, C. C. Hegna
Department of Engineering Physics, University of Wisconsin-Madison, Madison, WI, 53706
J. C. Schmitt
Department of Electrical and Computer Engineering, University of Wisconsin - Madison, Madison, WI, 53706
A.H. Boozer
Fu Foundation School of Engineering and Applied Science, Columbia University, New York City, NY, 10027
S.A. Lazerson
Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey

File: HSX-as-an-example-of-a-resilient-non-resonant-divertor.pdf

Physics of Plasmas, Volume 24, Issue 3, March 2017
A Bader, C. C. Hegna
Department of Engineering Physics, University of Wisconsin-Madison, Madison, WI, 53706
J. C. Schmitt
Department of Electrical and Computer Engineering, University of Wisconsin – Madison, Madison, WI, 53706
A.H. Boozer
Fu Foundation School of Engineering and Applied Science, Columbia University, New York City, NY, 10027
S.A. Lazerson
Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey


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A motional Stark effect diagnostic analysis routine for improved resolution of iota in the core of the large helical device

Review of Scientific Instruments, Volume 88, Issue 9, September 2017
T. J. Dobbins
HSX Stellarator, University of Wisconsin - Madison, Madison, Wisconsin, 53706
T. Kobayashi
Graduate School of Engineering Sciences, Kyushu University, Fukuoka, Kyushu, 819-0395, Japan
M. Yoshida
Department of Electronic and Electrical Engineering, Kindai University, Higashiosaka, Osaka 577-8502, Japan
K. Ida, Y. Suzuki, M. Yoshinuma, C. Suzuki
National Institute for Fusion Science, Toki, Gifu 509-5202, Japan

File: A-motional-Stark-effect-diagnostic-analysis-routine-for-improved-resolution-of-iota-in-the-core-of-the-large-helical-devic.pdf

Review of Scientific Instruments, Volume 88, Issue 9, September 2017
T. J. Dobbins
HSX Stellarator, University of Wisconsin – Madison, Madison, Wisconsin, 53706, USA
T. Kobayashi
Graduate School of Engineering Sciences, Kyushu University, Fukuoka, Kyushu, 819-0395, Japan
M. Yoshida
Department of Electronic and Electrical Engineering, Kindai University, Higashiosaka, Osaka 577-8502, Japan
K. Ida, Y. Suzuki, M. Yoshinuma, C. Suzuki
National Institute for Fusion Science, Toki, Gifu 509-5202, Japan


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Development of a 3-D visible limiter imaging system for the HSX stellarator

Review of Scientific Instruments, Volume 88, Issue 12, December 2017
C. Buelo, D. Eisert
Synchrotron Radiation Center, University of Wisconsin - Madison, Madison, Wisconsin, 53706
F.S.B. Anderson, D.T. Anderson
Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, Wisconsin, 53706
L. Stephey
Data Analytics and Service Group, Lawrence Berkeley National Laboratory, Berkeley, California, 94720

File: Development-of-a-3-D-visible-limiter-imaging-system-for-the-HSX-stellarator.pdf

Review of Scientific Instruments, Volume 88, Issue 12, December 2017

C. Buelo, D. Eisert
Synchrotron Radiation Center, University of Wisconsin – Madison, Madison, Wisconsin, 53706
F.S.B. Anderson, D.T. Anderson
Department of Electrical and Computer Engineering, University of Wisconsin – Madison, Madison, Wisconsin, 53706
L. Stephey
Data Analytics and Service Group, Lawrence Berkeley National Laboratory, Berkeley, California, 94720


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Determination of radial electric field from Pfirsch-Schluter flows in the HSX stellarator

Nuclear Fusion, Volume 57, February 2017
S. T. A. Kumar, J. N. Talmadge, T. J. Dobbins, F. S. B. Anderson, K. M. Likin and D. T. Anderson
HSX Plasma Laboratory, Univ. of Wisconsin, Madison, USA

File: Determination-of-radial-electric-field-from-Pfirsch-Schluter-flows-in-the-HSX-stellarato.pdf

Nuclear Fusion, Volume 57, February 2017

S. T. A. Kumar, J. N. Talmadge, T. J. Dobbins, F. S. B. Anderson, K. M. Likin and D. T. Anderson
HSX Plasma Laboratory, Univ. of Wisconsin, Madison, USA


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Calculations of neoclassical viscous damping on flux surfaces near magnetic islands in the Helically Symmetric Experiment

Physics of Plasmas, Volume 12, Issue 1, January 2005
S.P. Gerhardt, D.T. Anderson, J.N. Talmadge
HSX Plasma Laboratory, University of Wisconsin-Madison, Madison, Wisconsin 53703

File: Calculations-of-neoclassical-viscous-damping-on-flux-surfaces-near-magnetic-islands-in-the-Helically-Symmetric-Experiment_Gerhardt_Anderson-DT_Talmadge_2005.pdf

Physics of Plasmas, Volume 12, Issue 1, January 2005
S.P. Gerhardt, D.T. Anderson, J.N. Talmadge
HSX Plasma Laboratory, University of Wisconsin-Madison, Madison, Wisconsin 53703


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Measurements and modeling of plasma flow damping in the Helically Symmetric eXperiment

Physics of Plasmas, Volume 12, Issue 5, May 2005
S. P. Gerhardt, J. N. Talmadge, J. M. Canik, D. T. Anderson
HSX Plasma Laboratory, University of Wisconsin-Madison, Madison, Wisconsin 53706

File: Measurement-and-modeling-of-plasma-flow-damping-in-HSX_Gerhardt_Talmadge_Canik_Anderson-DT_2005.pdf

Physics of Plasmas, Volume 12, Issue 5, May 2005
S. P. Gerhardt, J. N. Talmadge, J. M. Canik, D. T. Anderson
HSX Plasma Laboratory, University of Wisconsin-Madison, Madison, Wisconsin 53706


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Edge turbulence measurements in electron-heated Helically Symmetric Experiment plasmas

Physics of Plasmas, Volume 16, Issue 8, August 2009
W. Guttenfelder, D. T. Anderson, F. S. B. Anderson, K. M. Likin, J. N. Talmadge
Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
J. M. Canik
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

Physics of Plasmas, Volume 16, Issue 8, August 2009
W. Guttenfelder, D. T. Anderson, F. S. B. Anderson, K. M. Likin, J. N. Talmadge
Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
J. M. Canik
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA


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SIESTA: A scalable iterative equilibrium solver for toroidal applications

Physics of Plasmas, Volume 18, Issue 6, June 2011
S. P. Hirshman
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-0117, USA
R. Sanchez
Departamento de Fisica, Universidad Carlos III de Madrid, Leganes 28021, Spain
C. R. Cook
University of Wisconsin at Madison, Madison, Wisconsin 53706, USA

File: SIESTA_PoP_2011.pdf

Physics of Plasmas, Volume 18, Issue 6, June 2011
S. P. Hirshman
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-0117, USA
R. Sanchez
Departamento de Fisica, Universidad Carlos III de Madrid, Leganes 28021, Spain
C. R. Cook
University of Wisconsin at Madison, Madison, Wisconsin 53706, USA


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Internal electron transport barrier due to neoclassical ambipolarity in the Helically Symmetric Experiment

Physics of Plasmas, Volume 17, Issue 5, May 2010
J. Lore, A. Briesemeister, D. T. Anderson, F. S. B. Anderson, K. M. Likin, J. N. Talmadge, K. Zhai
Department of Electrical and Computer Engineering, University of Wisconsin - Madison, Madison, Wisconsin 53706, USA
W. Guttenfelder
Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
C. B. Deng
Department of Physics, University of California - Los Angeles, Los Angeles, California 90024, USA
D. A. Spong
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

File: Internal-electron-transport-barrier-due-to-neoclassical-ambipolarity-in-the-Helically-Symmetric-Experiment_Lore_Guttenfelder_et-al_2010.pdf

Physics of Plasmas, Volume 17, Issue 5, May 2010
J. Lore, A. Briesemeister, D. T. Anderson, F. S. B. Anderson, K. M. Likin, J. N. Talmadge, K. Zhai
Department of Electrical and Computer Engineering, University of Wisconsin – Madison, Madison, Wisconsin 53706, USA
W. Guttenfelder
Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
C. B. Deng
Department of Physics, University of California – Los Angeles, Los Angeles, California 90024, USA
D. A. Spong
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA


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Fluctuation-induced transport and poloidal rotation in the interchangeable module stellarator

Physics of Plasmas, Volume 5, Issue 11, November 1993
P. G. Matthews, D. T. Anderson, F. S. 6. Anderson, J. L. Shohet, J. N. Talmadge
Torsatron/Stellarator Laboratory, University of Wisconsin-Madison, Madison, Wisconsin 53706

File: Fluctuation-induced-transport-and-poloidal-rotation-in-the-interchangeable-module-stellarator_Matthews_Anderson-DT_Anderson-FSB_Shohet_Talmadge_1993.pdf

Physics of Plasmas, Volume 5, Issue 11, November 1993
P. G. Matthews, D. T. Anderson, F. S. 6. Anderson, J. L. Shohet, J. N. Talmadge
Torsatron/Stellarator Laboratory, University of Wisconsin-Madison, Madison, Wisconsin 53706


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Modeling, measurement, and 3-D equilibrium reconstruction of the bootstrap current in the Helically Symmetric Experiment

Physics of Plasmas, Volume 21, Issue 9, September 2014
J. C. Schmitt, J. N. Talmadge, D. T. Anderson
Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
J. D. Hanson
Department of Physics, Auburn University, Auburn, Alabama 36849, USA

File: Modeling-measurement-and-3-D-equilibrium-reconstruction-of-the-bootstrap-current-in-the-Helically-Symmetric-Experiment_Schmitt_Talmadge_Anderson-DT_Hanson_2014.pdf

Physics of Plasmas, Volume 21, Issue 9, September 2014
J. C. Schmitt, J. N. Talmadge, D. T. Anderson
Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
J. D. Hanson
Department of Physics, Auburn University, Auburn, Alabama 36849, USA


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Evolution of the plasma rotation and the radial electric field for a toroidal plasmain the Pfirsch–Schlüter and plateau regimes subject to a biased electrode

Physics of Plasmas, Volume 5, Issue 4, April 1993
M. Coronado, J. N. Talmadge
Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706-1691

File: Evolution-of-the-plasma-rotation-and-the-radial-electric-field-for-a-toroidal-plasma-in-the-Pfirsch–Schlüter-and-plateau-regimes-subject-to-a-biased-electrode_Coronado_Talmadge_.pdf

Physics of Plasmas, Volume 5, Issue 4, April 1993
M. Coronado, J. N. Talmadge
Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706-1691


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