MEASUREMENT OF VELOCITY DISTRIBUTIONS AND RECOMBINATION KINETICS IN TUNNEL-IONIZED HELIUM PLASMAS

被引：30

作者：

GLOVER, TE ^{[1
]}

CRANE, JK ^{[1
]}

PERRY, MD ^{[1
]}

LEE, RW ^{[1
]}

FALCONE, RW ^{[1
]}

机构：

[1] LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.75.445

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first measurements on the distribution of electron energies and associated recombination kinetics in tunnel-ionized plasmas of interest to recent x-ray laser proposals. Subpicosecond laser pulses, focused to an intensity of 1 x 10(16) W/cm(2), create a fully ionized helium plasma. Measurement of the resulting emission spectrum allows a determination of the time-dependent electron velocity distribution. The initial distribution is found to be strongly non-Maxwellian and subsequent recombination kinetics proceed more slowly than predicted for a Maxwellian distribution of electrons.

引用

页码：445 / 448

页数：4

共 17 条

[1] X-RAY LASING BY OPTICAL-FIELD-INDUCED IONIZATION [J].