科学技术创新2024,Issue(11) :46-49.

环保型混合气体绝缘介质散射截面微观机理研究

Study on Microcosmic Mechanism of Scattering Cross Section of Environmentally Friendly Mixed Gas Insulating Medium

张文婧
科学技术创新2024,Issue(11) :46-49.

环保型混合气体绝缘介质散射截面微观机理研究

Study on Microcosmic Mechanism of Scattering Cross Section of Environmentally Friendly Mixed Gas Insulating Medium

张文婧1
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作者信息

  • 1. 西安交通大学城市学院,陕西西安
  • 折叠

摘要

为推进电力设备绝缘介质新型环保绝缘气体开发工作,本文采用量子力学微观计算方法,以电子/气体分子碰撞散射截面作为计算目标,采用密耦近似方法,计算了 He-H2混合气体多粒子体系相对碰撞能量E=0.2 eV时00-00弹性碰撞和00-02,00-04非弹性激发碰撞的微分反射截面,进一步分析相对碰撞能量值对弹性及非弹性碰撞计算结果的影响,总结了该碰撞体系微分散射截面的变化规律,为探索混合气体绝缘特性的机理提供理论基础和指导.研究表明,He-H2的00-00弹性碰撞微分截面主要发生在小角度部分,00-02非弹性碰撞的散射主要发生在大角部分,00-04跃迁能实现,但非弹性碰撞微分截面很小,而He-H2碰撞的00-06激发不可能实现.

Abstract

In order to promote the development of a new type of environmentally friendly insulating gas for the insulating medium of power equipment,this paper adopts the microscopic calculation method of quan-tum mechanics,takes the collision scattering cross section of electron/gas molecules as the calculation target,and adopts the close coupling approximation method to calculate the 00-00 elastic collision and 00-02 of the He-H2 mixed gas multi-particle system when the relative collision energy E=0.2 eV.00-04 Differential re-flection cross section of inelastic(rotational excitation)excitation collision,further analyze the impact of rela-tive impact energy value on elastic and inelastic collision calculation results,summarize the variation law of differential scattering cross section of the collision system,and provide theoretical basis and guidance for ex-ploring the mechanism of insulation characteristics of mixed gas.The results show that the 00-00 elastic col-lision differential cross section of He-H2 mainly occurs in the small Angle part,the scattering of 00-02 in-elastic collision mainly occurs in the large Angle part,and the 00-04 transition can be realized,but the in-elastic collision differential cross section is very small,and the 00-06 excitation of He-H2 collision is impos-sible to be realized.

关键词

碰撞/混合气体/散射截面/密耦近似

Key words

collision/mixed gas/scattering cross section/closely coupled approximation

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基金项目

西安交通大学城市学院校级科研项目(2022Q03)

出版年

2024
科学技术创新
黑龙江省科普事业中心

科学技术创新

影响因子:0.842
ISSN:1673-1328
参考文献量9
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