Application of a collisinal-radiative model for the analysis of K-shell line spectra emitted by Z-pinch plasma

被引：7

作者：

Li Jing ^{[1
,2
]}

Xie Wei-Ping ^{[1
]}

Huang Xian-Bin ^{[1
]}

Yang Li-Bing ^{[1
]}

Cai Hong-Chun ^{[1
]}

Pu Yi-Kang ^{[2
]}

机构：

[1] China Acad Engn Phys, Inst Fluid Phys, Mianyang 621900, Peoples R China

[2] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China

来源：

ACTA PHYSICA SINICA | 2010年 / 59卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Collisional-radiative model; K-shell line spectra; neon gas-puff Z-pinch; Yang accelerator; PHYSICS; POWER; NEON;

D O I：

10.7498/aps.59.7922

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper, the principle of the collisional-radiative model for the estimation of plasma parameters from the ratios of K-shell spectral lines was introduced. The structure of a computer program, ZSPEC, developed for the analysis of K-shell line spectra emitted by Z-pinch plasma based on the collisioanl-radiative model was described in detail. The calculation for neon plasma were presented, including the number fractions of major ionization stages at different electron temperature and the contours of K-shell line ratios in the plane defined by electron density and electron temperature. ZSPEC had been used to analyze the measured results of neon gas-puff Z-pinch experiment performed on Yang accelerator. By comparing the K-shell line ratios of neon plasma obtained by an elliptical crystal spectrometer with the results calculated by ZSPEC, the time and space averaged electron temperature and electron density of the K-shell plasma for the shot with 540 kA peaking current were determined to be 240 eV and 1. 0 x 10(19) cm(-3) respectively.

引用

页码：7922 / 7929

页数：8

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