High gain X-ray lasers pumped by transient collisional excitation

被引：6

作者：

Dunn, J ^{[1
]}

Osterheld, AL ^{[1
]}

Shlyaptsev, VN ^{[1
]}

Hunter, JR ^{[1
]}

Shepherd, R ^{[1
]}

Stewart, RE ^{[1
]}

White, WE ^{[1
]}

机构：

[1] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

来源：

ATOMIC PROCESSES IN PLASMAS: ELEVENTH APS TOPICAL CONFERENCE | 1998年 / 443卷

关键词：

D O I：

10.1063/1.56567

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We present recent results of x-ray laser amplification of spontaneous emission in Ne-like and Ni-like transient collisional excitation schemes. The plasma formation, ionization and collisional excitation can be optimized using two laser pulses of 1 ns and 1 ps duration at table-top energies of 5 J in each beam. High gain of 35 cm(-1) has been measured on the 147 Angstrom 4d-->4p J=0-->1 transition of Ni-like Pd and is a direct consequence of the nonstationary population inversion produced by the high intensity picosecond pulse. We report the dependence of the x-ray laser line intensity on the laser plasma conditions and compare the experimental measurements with hydrodynamic and atomic kinetics simulations for Ne-like and Ni-like lasing.

引用

页码：106 / 117

页数：12