High energy density z-pinch plasma conditions with picosecond time resolution.
Using an X-pinch configuration, we have determined that micropinches produced by exploding-wire z pinches can have densities approaching solid density and temperatures of 0.5-1.8 keV, depending upon the wire material used. These plasma parameters, determined from x-ray spectra recorded using an x-ray streak camera, vary drastically on time scales ranging from <10 to 100 ps. Computer simulations require radiation loss to reproduce the observed plasma implosion, suggesting that a radiative-collapse hypothesis for micropinch plasma formation may be correct.
Pikuz
S A
SA
Laboratory of Plasma Studies, 369 Upson Hall, Cornell University, Ithaca, New York 14853, USA.
Sinars
D B
DB
Shelkovenko
T A
TA
Chandler
K M
KM
Hammer
D A
DA
Ivanenkov
G V
GV
Stepniewski
W
W
Skobelev
I Yu
IY