High resolution X-ray emission spectra from picosecond laser irradiated Ge targets

被引：18
作者：
Abdallah, J.
Batani, D.
Desai, T.
Lucchini, G.
Faenov, A.
Pikuz, T.
Magunov, A.
Narayanan, V.
机构：
[1] Univ Milan, Dipartimento Fis Gocchialini, I-20126 Milan, Italy
[2] Los Alamos Natl Lab, Los Alamos, NM USA
[3] Russian Acad Sci, Joint Inst High Temp, Moscow, Russia
[4] Russian Acad Sci, AM Prokhorov Gen Phys Inst, Moscow, Russia
来源：
LASER AND PARTICLE BEAMS | 2007年 / 25卷 / 02期
关键词：
laser-plasmas; X-ray spectroscopy; plasma diagnostics;
D O I：
10.1017/S0263034607000080
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Investigations of a high resolution X-ray emission spectrum in the range 0.66-0.75 nm obtained by irradiating a Germanium target with high-power p-polarized, 40 picosecond laser radiation at 532 nm wavelength was done. Spectra in the wavelength region of 2l-4l' and 2l-5l' L-shell transitions in F-like, Ne-like and Na-like germanium ions were recorded using the FSSR-21) spectrometer equipped with a spherically bent quartz crystal with a spectral resolution lambda/Delta lambda better than 5000. Spectral lines were compared with theoretical values obtained using the LANL, plasma kinetic code ATOMIC. Fair agreement between experimental and theoretical spectral lines has been observed, which allowed to measure enough high bulk electron temperature values of 560 eV and electron density of similar to 10(21) cm(-3) in Ge plasma irradiated by rather small commercial high repetition rate Nd:YAG laser system.
引用
收藏
页码：245 / 252
页数：8
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