Journal
PHYSICS OF PLASMAS
Volume 27, Issue 6, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.5134786
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Funding
- U.S. DOE from the Office of Fusion Energy Sciences [DE-SC0016258]
- Department of Energy National Nuclear Security Administration [DE-NA0003856, DE-NA0003868]
- University of Rochester
- New York State Energy Research and Development Authority
- agency of the U.S. Government
- U.S. Department of Energy (DOE) [DE-SC0016258] Funding Source: U.S. Department of Energy (DOE)
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In a laser-driven coil, a laser is used to eject electrons from a plate, which then draws a current through a loop. Diagnosing the field strength, geometry, and conditions within these loops has been one of the primary difficulties in fielding this type of target. In this paper, the diagnostic technique of axial proton probing with a mesh fiducial of a laser-driven coil is demonstrated. Multiple coil types were driven by a 1ns, 1.25kJ long pulse beam and probed several times. This technique provides significantly more information than transverse probing on electric- and magnetic-field strength in the region of interest and shows in our experiment complex, non-uniform current path structures and charge distribution.
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