K-SHELL AND L-SHELL X-RAY SPECTROSCOPIC MEASUREMENTS OF FUEL AND PUSHER DOPANTS IN INDIRECTLY DRIVEN ICF IMPLOSIONS

被引:37
作者
HAMMEL, BA
KEANE, CJ
DITTRICH, TR
KANIA, DR
KILKENNY, JD
LEE, RW
LEVEDAHL, WK
机构
关键词
D O I
10.1016/0022-4073(94)90071-X
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Time resolved x-ray spectroscopy is used to study the implosion of indirectly driven inertial confinement fusion capsules on the Nova laser. Through the use of high-Z dopants (Ar and Xe) in the fuel, measurements of the peak temperature, from emission line ratios, and density, from line broadening, are obtained. These measurements indicate peak electron temperatures of approximately 1-1.6 keV and electron and deuteron densities in the range of 1.0-2.0 x 10(24) cm-3, depending on the type of laser drive used. The higher densities are achieved on targets that are driven with a shaped laser drive that allows a more isentropic compression of the fuel. The spectra of high-Z pusher dopants have also been studied. These dopants can provide information on pusher conditions and can be used to study hydrodynamic mix at the pusher fuel interface.
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页码:113 / 124
页数:12
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