Numerical Simulation of the Self-Heating Effect Induced by Electron Beam Plasma in Atmosphere

被引：0

作者：

邓永锋 ^{[1
]}

谭畅 ^{[1
]}

韩先伟 ^{[1
]}

谭永华 ^{[2
]}

机构：

[1] Shaanxi Power Machine Design and Research Institute

来源：

Plasma Science and Technology | 2012年 / 02期

基金：

中国国家自然科学基金;

关键词：

electron beam; plasma simulation; self-heating; GEANT4;

D O I：

暂无

中图分类号：

O532 [约束与加热];

学科分类号：

070204 ;

摘要：

For exploiting advantages of electron beam air plasma in some unusual applications,a Monte Carlo(MC) model coupled with heat transfer model is established to simulate the characteristics of electron beam air plasma by considering the self-heating effect.Based on the model,the electron beam induced temperature field and the related plasma properties are investigated.The results indicate that a nonuniform temperature field is formed in the electron beam plasma region and the average temperature is of the order of 600 K.Moreover,much larger volume pear-shaped electron beam plasma is produced in hot state rather than in cold state.The beam ranges can,with beam energies of 75 keV and 80 keV,exceed 1.0 m and 1.2 m in air at pressure of 100 torr,respectively.Finally,a well verified formula is obtained for calculating the range of high energy electron beam in atmosphere.

引用

页码：89 / 93

页数：5

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