Monte Carlo simulation of tritium beta-ray induced X-ray spectrum in various gases

被引：8

作者：

Hara, Masanori ^{[1
]}

Uchikawa, Ryota ^{[1
]}

Hatano, Yuji ^{[1
]}

Matsuyama, Masao ^{[1
]}

Aso, Tsukasa ^{[2
]}

Kawakami, Tomohiko ^{[3
]}

Ito, Takeshi ^{[3
]}

机构：

[1] Univ Toyama, Org Promot Res, Hydrogen Isotope Res Ctr, 3190 Gofuku, Toyama, Toyama 9308555, Japan

[2] Toyama Coll, Natl Inst Technol, Elect & Comp Engn, 1-2 Ebie Neriya, Imizu, Toyama 9330293, Japan

[3] KAKEN Co Ltd, 1044 Horimachi, Mito, Ibaraki 3100903, Japan

来源：

FUSION ENGINEERING AND DESIGN | 2018年 / 131卷

关键词：

Tritium beta-ray induced X-ray spectrometry; Bremsstrahlung; Monte Carlo simulation; Geant4; BREMSSTRAHLUNG COUNTING METHOD; MONITOR; SPECTROMETRY;

D O I：

10.1016/j.fusengdes.2018.04.080

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Tritium beta-ray induced X-ray spectra in various gas mediums were simulated by Monte Carlo simulation using Geant4 tool kit. The simulated beta-ray induced X-ray spectrum (s-BIX spectrum) was composed of the bremsstrahlung component and characteristics X-rays from constituent elements. The total number of photons in s-BIX spectrum decreased with increasing pressure of medium except argon. In argon medium, the characteristics X-ray of argon was generated by beta particles from tritium decay, and the contribution of Ar-K alpha and -K beta compensated the reduction of bremsstrahlung generated by solid matter with increasing argon pressure. At 0.001 atm of medium pressure, the total counts in s-BIX spectrum was independent from gas medium. Therefore, the gas medium dependence in BIXS at low pressure (less than 0.001 atm) was not serious issue.

引用

页码：125 / 129

页数：5

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