Measurement of time-resolved electron temperature of plasmas for Shenguang II hohlraum

被引：0

作者：

Yang G. ^{[1
,3
]}

Zhang J. ^{[1
,3
]}

Wu Z. ^{[2
]}

Ding Y. ^{[1
,3
]}

Yang J. ^{[1
,3
]}

Hu X. ^{[1
]}

Li J. ^{[1
]}

机构：

[1] Research Center of Laser Fusion, CAEP, Mianyang 621900

[2] Institute of Applied Physics and Computational Mathmatics, Beijing 100088

[3] Science and Technology on Plasma Physics Laboratory

来源：

Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams | 2010年 / 22卷 / 11期

关键词：

Electron temperature; Hohlraum; Isoelectronic X-ray spectroscopy; Time-resolved;

D O I：

10.3788/HPLPB20102211.2613

中图分类号：

学科分类号：

摘要：

Time-resolved spectra of highly ionized Cr and Ti tracers, which are buried in the inner wall of golden hohlraum, are measured by the streaked crystal spectrometer on the Shenguang II laser facility. The collisional-radiative model is adopted for non-LTE(local thermodynamic equilibrium) population calculations, and configuration-averaged rate coefficients are obtained based on the first-order perturbation theory. Hartree-Fock Slater self-consistent field method is used to calculate electron wavefunctions. The isoelectronic line-ratio of He-α for Cr and Ti tracers is derived in the electron density range of 1019~1022 cm-3. The evolution of time-resolved electron temperature in hohlraum in the process of laser-plasma interaction is deduced by isoelectronic X-ray spectroscopy, and the peak temperature is 2.05 keV.

引用

页码：2613 / 2616

页数：3

共 9 条

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