Atomic kinetics calculations of complex highly-charged ions in plasmas in non-local thermodynamic equilibrium by using a Monte-Carlo approach

被引：2

作者：

Sasaki, Akira ^{[1
]}

More, Richard M. ^{[2
]}

Fujii, Keisuke ^{[3
]}

Kato, Daiji ^{[4
,5
]}

Murakami, Izumi ^{[4
,6
]}

机构：

[1] Natl Inst Quantum & Radiol Sci & Technol, Kansai Photon Sci Inst, 8-1-7 Umemidai, Kyoto 61902145, Japan

[2] RMorePhysics, Pleasanton, CA USA

[3] Kyoto Univ, Grad Sch Engn, Dept Mech Engn & Sci, Kyoto 6158540, Japan

[4] Natl Inst Fus Sci, 322-6 Oroshi Cho, Toki, Gifu 5095292, Japan

[5] Kyushu Univ, Dept Adv Energy Engn Sci, Fukuoka, Fukuoka 8168570, Japan

[6] SOKENDAI Grad Univ Adv Studies, Dept Fus Sci, Toki, Gifu 5095292, Japan

来源：

HIGH ENERGY DENSITY PHYSICS | 2019年 / 32卷

关键词：

Collisional radiative model; Atomic process; Highly charged ion; COLLISIONAL-RADIATIVE MODEL; RATE COEFFICIENTS;

D O I：

10.1016/j.hedp.2019.04.005

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A new calculation of atomic kinetics of multiple-charged tungsten ions in a high temperature plasma in the nonlocal thermodynamic equilibrium (nLTE) based on the Markov chain Monte-Carlo (MCMC) method is presented. It is shown that the fractional ion abundance and the resulting mean charge of the plasma can be calculated with much lower computational time compared to conventional methods. The present method can be easily parallelized and is applicable to larger problems, such as modeling coupled atomic processes and radiation hydrodynamics.

引用

页码：1 / 7

页数：7

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