X-ray spectra of high temperature tungsten plasma calculated with collisional radiative model

doi:10.1088/1674-1056/22/8/085201

Abstract Tungsten is regarded as an important candidate of plasma facing material in international thermonuclear experimental reactor (ITER), so the determination and modeling of spectra of tungsten plasma, especially the spectra at high temperature were intensely focused on recently. In this work, using the atomic structure code of Cowan, a collisional radiative model (CRM) based on the spin-orbit-split-arrays is developed. Based on this model, the charge state distribution of tungsten ions is determined and the soft X-ray spectra from high charged ions of tungsten at different temperatures are calculated. The results show that both the average ionization charge and line positions are well agreed with others calculations and measurements with discrepancies of less than 0.63% and 1.26%, respectively. The spectra at higher temperatures are also reported and the relationship between ion abundance and temperature is predicted in this work.

Keywords: tungsten plasma high temperature X-ray spectra collisional radiative model

Received: 24 September 2012
Revised: 26 December 2012
Accepted manuscript online:

PACS:	52.20.Hv	(Atomic, molecular, ion, and heavy-particle collisions)
	32.70.Cs	(Oscillator strengths, lifetimes, transition moments)
	32.30.Jc	(Visible and ultraviolet spectra)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11074176) and the Science Foundation of College of Science, Sichuan University of Science and Engineering, China (Grant No. 10LXYA01).

Corresponding Authors: Cheng Xin-Lu
E-mail: chengxl@scu.edu.cn

Cite this article:

Wang Jun (王君), Zhang Hong (张红), Cheng Xin-Lu (程新路) X-ray spectra of high temperature tungsten plasma calculated with collisional radiative model 2013 Chin. Phys. B 22 085201

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X-ray spectra of high temperature tungsten plasma calculated with collisional radiative model

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