X-RAY GENERATION BY HIGH IRRADIANCE SUBPICOSECOND LASERS

被引：57

作者：

KYRALA, GA

FULTON, RD

WAHLIN, EK

JONES, LA

SCHAPPERT, GT

COBBLE, JA

TAYLOR, AJ

机构：

[1] Los Alamos National Laboratory, MS E526, Los Alamos, NM 87545

来源：

APPLIED PHYSICS LETTERS | 1992年 / 60卷 / 18期

关键词：

D O I：

10.1063/1.107077

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have studied the interaction of 290-fs, 308-nm laser pulses with aluminum targets at irradiances exceeding 5 X 10(18) W/cm2. The x-ray spectrum is dominated by the H- and He-like lines from aluminum, with the brightest lines radiating 0.8% of the incident laser light energy. This fraction is close to that measured at 50 times less irradiance, but occurs at a slightly higher ionization stage. The x rays are emitted from a region of subcritical electron density at 3-6 X 10(21) cm-3. The radiance of the 1.73-keV L(alpha) line is measured to be 4 x 10(12) W/cm2/sr.

引用

页码：2195 / 2197

页数：3

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