RESEARCH

Commitment to rigorous, peer-reviewed science.

A view inside the Zap reactor core with puffs of gas and bolts of electricity

We are committed to publishing high quality new work that makes a significant contribution in our field.

Progress on Multielement Spectroscopic Temperature and Impurity Studies on a High Flow Velocity Z-Pinch

A. W. Klemmer, S. Fuelling, B. S. Bauer, G. A. Wurden, A. S. Taylor, D. A. Sutherland, Aaron Hossack, U. Shumlak, B. Levitt, B. A. Nelson, M. Quinley, T. R. Weber, J. Smythe, B. Diamond, M. Parry, C. Parga
IEEE Transactions on Plasma Science, 2024.
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Electrode durability and sheared-flow-stabilized Z-pinch fusion energy

M. C. Thompson, S. C. Simpson, C. J. Beers, J. Dadras, E. T. Meier, P. H. Stoltz
Physics of Plasmas, 30(10):100601, 2023.
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The Zap Energy approach to commercial fusion

B. Levitt, E. T. Meier, R. Umstattd, J. R. Barhydt, I. A. M. Datta, C. Liekhus-Schmaltz; D. A. Sutherland, B. A. Nelson
Physics of Plasmas, 30(9):090603, 2023.
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Implementation of extreme ultraviolet spectroscopy on a sheared-flow-stabilized Z pinch

A. W. Klemmer, S. Fuelling, B. S. Bauer, G. A. Wurden, A. S. Taylor, D. A. Sutherland, A. P. Shah, A. D. Stepanov, B. J. Levitt, B. A. Nelson, T. R. Weber, M. Quinley, U. Shumlak
Review of Scientific Instruments, 94:083507, 2023
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Engineering paradigms for sheared-flow-stabilized Z-pinch fusion energy

M.C. Thompson, B. Levitt, B.A. Nelson, U. Shumlak
Fusion Science and Technology, 79(8):1051-1058, 2023.
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Fusion gain and triple product for the sheared-flow-stabilized Z pinch

U. Shumlak, E.T. Meier, B.J. Levitt
Fusion Science and Technology, 80(1):1-16, 2024.
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Computationally efficient high-fidelity plasma simulations by coupling multi-species kinetic and multi-fluid models on decomposed domains

I.A.M. Datta, U. Shumlak
Journal of Computational Physics, 483:112073, 2023.
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Probing local electron temperature and density inside a sheared flow stabilized Z-pinch using portable optical Thomson scattering

J. T. Banasek, C. Goyon, S. C. Bott-Suzuki, G. F. Swadling, M. Quinley, B. Levitt, B. A. Nelson, U. Shumlak, and H. S. McLean.
Review of Scientific Instruments, 94:023508, 2023.
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Thermonuclear neutron emission from a sheared-flow stabilized Z-pinch

J. M. Mitrani, J. A. Brown, B. L. Goldblum, T. A. Laplace, E. L. Claveau, Z. T. Draper, E. G. Forbes, R. P. Golingo, H. S. McLean, B. A. Nelson, U. Shumlak, A. Stepanov, T. R. Weber, Y. Zhang, and D. P. Higginson.
Physics of Plasmas, 28:112509, 2021.
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Development of five-moment two-fluid Modeling for Z-pinch physics

E.T. Meier and U. Shumlak.
Physics of Plasmas, 28:092512, 2021.
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Flow Z-pinch plasma production on the FuZE experiment

A. D. Stepanov, U. Shumlak, H. S. McLean, B. A. Nelson, E. L. Claveau, E. G. Forbes, T. R. Weber, and Y. Zhang.
Physics of Plasmas, 27(11):112503, 2020.
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Plasma exhaust in a sheared-flow-stabilized Z-pinch

E. L. Claveau, U. Shumlak, B. A. Nelson, E. G. Forbes, A. D. Stepanov, T. R. Weber, Y. Zhang, and H. S. McLean.
Physics of Plasmas, 27(9):092510, 2020.
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Spatio-Temporal Ion Temperature and Velocity Measurements in a Z-pinch Using Fast-framing Spectroscopy

E. G. Forbes and U. Shumlak.
Review of Scientific Instruments, 91(8):083104, 2020.
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Z-pinch fusion

U. Shumlak
Journal of Applied Physics, 127(20):200901, 2020.
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Progress toward a compact fusion reactor using the sheared-flow-stabilized Z-pinch

E. G. Forbes, U. Shumlak, H. S. McLean, B. A. Nelson, E. L. Claveau, R. P. Golingo, D. P. Higginson, J. M. Mitrani, A. D. Stepanov, K. K. Tummel, T. R. Weber, and Y. Zhang.
Fusion Science and Technology, 75(7):599-607, 2019.
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Measurements of temporally-and spatially-resolved neutron production in a sheared-flow stabilized Z-pinch

J. M. Mitrani, D. P. Higginson, Z. T. Draper, J. Morrell, L. A. Bernstein, E. L. Claveau, C. M. Cooper, E. G. Forbes, R. P. Golingo, B. A. Nelson, A. E. Schmidt, A. D. Stepanov, T. R. Weber, Y. Zhang, H. S. McLean, and U. Shumlak.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 947:162764, 2019.
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Sustained neutron production from a sheared-flow stabilized Z-pinch

Y. Zhang, U. Shumlak, B. A. Nelson, R. P. Golingo, T. R. Weber, A. D. Stepanov, E. L. Claveau, E. G. Forbes, Z. T. Draper, J. M. Mitrani, H. S. McLean, K. K. Tummel, D. P. Higginson, and C. M. Cooper.
Phys. Rev. Lett., 122:135001, Apr 2019.
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Kinetic simulations of sheared flow stabilization in high-temperature Z-pinch plasmas

K. Tummel, D. P. Higginson, A. J. Link, A. E. W. Schmidt, D. T. Offermann, D. R. Welch, R. E. Clark, U. Shumlak, B. A. Nelson, R. P. Golingo, and H. S. McLean.
Physics of Plasmas, 26(6):062506, 2019.
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Increasing plasma parameters using sheared flow stabilization of a Z-pinch

U. Shumlak, B. A. Nelson, E. L. Claveau, E. G. Forbes, R. P. Golingo, M. C. Hughes, R. J. Oberto, M. P. Ross, and T. R. Weber.
Physics of Plasmas, 24(5):055702, 2017.
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The sheared-flow stabilized Z-pinch

U. Shumlak, J. Chadney, R.P. Golingo, D.J. Den Hartog, M.C. Hughes, S.D. Knecht, W. Lowrie, V.S. Lukin, B.A. Nelson, R.J. Oberto, J.L. Rohrbach, M.P. Ross & G.V. Vogman
Fusion Science and Technology, 61(1T):119-124, 2017.
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Sheared flow stabilization experiments in the ZaP flow Z pinch

U. Shumlak, B. A. Nelson, R. P. Golingo, S. L. Jackson, and E. A. Crawford
Physics of Plasmas, 10:1683, 2003.
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Evidence of stabilization in the Z-Pinch

U. Shumlak, R. P. Golingo, B. A. Nelson, and D. J. Den Hartog
Phys. Rev. Lett., 87:205005, Oct 2001.
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Mitigation of the Rayleigh–Taylor instability by sheared axial flows

U. Shumlak and N. F. Roderick
Physics of Plasmas, 5(6):2384, 1998.
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Sheared flow stabilization of the m=1 kink mode in Z pinches

U. Shumlak and C. W. Hartman
Phys. Rev. Lett., 75:3285, 1995.
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