Radiation energetics of ICF-relevant wire-array Z pinches.
Short-implosion-time 20-mm diameter, 300-wire tungsten arrays maintain high peak x-ray powers despite a reduction in peak current from 19 to 13 MA. The main radiation pulse on tests with a 1-mm on-axis rod may be explained by the observable j x B work done during the implosion, but bare-axis tests require sub-mm convergence of the magnetic field not seen except perhaps in >1 keV emission. The data include the first measurement of the imploding mass density profile of a wire-array Z pinch that further constrains simulation models.
Sandia National Laboratories, PO Box 5800, Albuquerque, New Mexico 87185, USA.
D B
DB
Sinars
R W
RW
Lemke
M E
ME
Cuneo
S V
SV
Lebedev
E M
EM
Waisman
W A
WA
Stygar
B
B
Jones
M C
MC
Jones
E P
EP
Yu
J L
JL
Porter
D F
DF
Wenger