Research

We are committed to publishing rigorous, peer-reviewed science.

PANDA-FES: Portable and Adaptable Neutron Diagnostics for Advancing Fusion Energy Science

A. E. Youmans, J. M. Mitrani, M. McMahon, A. T. Jibodu, C. S. Goyon, C. M. Cooper, B. L. Goldblum, T. A. Laplace, J. A. Brown, F. Conti, A. Williams, F. N. Beg, E. Ruskov, B. J. Levitt, A. R. Johanssen, U. Shumlak, P. E. Tsai, D. P. Higginson
IEEE Transactions on Plasma Science, 2024.
Read the paper

Whole device modeling of the FuZE sheared-flow-stabilized Z pinch

I.A.M. Datta, E.T. Meier, and U. Shumlak
Nuclear Fusion, 64(1):066016, 2024.
Read the paper

Elevated Electron Temperature Coincident with Observed Fusion Reactions in a Sheared-Flow-Stabilized Z Pinch

B. Levitt, C. Goyon, J. T. Banasek, S. C. Bott-Suzuki, C. Liekhus-Schmaltz, E. T. Meier, L. A. Morton, A. Taylor, W. C. Young, B. A. Nelson, D. A. Sutherland, M. Quinley, A. D. Stepanov, J. R. Barhydt, P. Tsai, K. D. Morgan, N. van Rossum, A. C. Hossack, T. R. Weber, W. A. McGehee, P. Nguyen, A. Shah, S. Kiddy, M. Van Patten, A. E. Youmans, D. P. Higginson, H. S. McLean, G. A. Wurden, and U. Shumlak
Phys. Rev. Lett., 132:155101, 2024.
Read the paper

The Kadomtsev Pinch Revisited for Sheared-Flow-Stabilized Z-Pinch Modeling

D. W. Crews, I. A. M. Datta, E. T. Meier, U. Shumlak
IEEE Transactions on Plasma Science, 2024.
Read the paper

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.
Read the paper

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.
Read the paper

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.
Read the paper

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
Read the paper

Engineering paradigms for sheared-flow-stabilized Z-pinch fusion energy

M.C. Thompson, B. Levitt, B.A. Nelson & U. Shumlak
Fusion Science and Technology, 10.1080/15361055.2023.2209131, 2023.
Read the paper

Fusion gain and triple product for the sheared-flow-stabilized Z pinch

U. Shumlak, E.T. Meier, B.J. Levitt
Fusion Science and Technology, 10.1080/15361055.2023.2198049, 2023.
Read the paper

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, 112073, 2023.
Read the paper

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.
Read the paper

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.
Read the paper

Development of five-moment two-fluid Modeling for Z-pinch physics

E.T. Meier and U. Shumlak.
Physics of Plasmas, 28:092512, 2021.
Read the paper

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.
Read the paper

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.
Read the paper

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.
Read the paper

Z-pinch fusion

U. Shumlak
Journal of Applied Physics, 127(20):200901, 2020.
Read the paper

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.
Read the paper

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.
Read the paper

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.
Read the paper

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.
Read the paper

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.
Read the paper

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.
Read the paper

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.
Read the paper

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.
Read the paper

Mitigation of the Rayleigh–Taylor instability by sheared axial flows

U. Shumlak and N. F. Roderick
Physics of Plasmas, 5(6):2384, 1998.
Read the paper

Sheared flow stabilization of the m=1 kink mode in Z pinches

U. Shumlak and C. W. Hartman
Phys. Rev. Lett., 75:3285, Oct 1995.
Read the paper