...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nuclear Instruments & Methods in Physics Research. B, Beam Interactions with Materials and Atoms >A method for calculating the energy distribution and yield of electrons ejected by protons in nitrogen gas targets
【24h】

A method for calculating the energy distribution and yield of electrons ejected by protons in nitrogen gas targets

机译：一种计算氮气靶中质子发射电子的能量分布和产率的方法

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A method for the calculation of the energy distribution function and yield of electrons ejected by energetic protons in irradiated nitrogen gas is presented. The energy distribution of the ejected primary electrons is calculated with the Rudd model. The production rate of primary electrons obtained, differential in ejection energy, is energy normalised with a new method using known linear ionisation stopping power values for the incoming protons. The linear ionisation stopping power values are a measure of the energy degradation caused by multiple collisions of the incoming protons. Secondary electrons are produced by the energetic primary electrons. The production rate of secondary electrons, differential in ejection energy, is calculated with the Binary-Encounter-Bethe (BEB) model. The production rate of secondary electrons is energy normalised with a new method using the fraction of the kinetic energy available for ionising reactions versus all other loss channels in the nitrogen gas. The method developed was tested in calculations of 4.3 MeV protons being stopped in 500 kPa or 1500 kPa nitrogen gas. The method developed yields the total electron energy distribution function. This can then be used in numerical modelling of reaction dynamics of excited atomic and molecular species in the proton irradiated gas.
机译：提出了一种计算高能质子在辐照氮气中的能量分布函数和电子产量的方法。发射的一次电子的能量分布是用Rudd模型计算的。所获得的一次电子的生产率，即射出能量的差异，是通过一种新方法对能量进行归一化的，该方法使用已知的入射质子的线性电离停止功率值。线性电离停止功率值是由入射质子的多次碰撞引起的能量降解的量度。二次电子是由高能一次电子产生的。使用Binary-Encounter-Bethe（BEB）模型来计算二次电子的生产率，即喷射能量的差异。二次电子的生产率用一种新方法对能量进行归一化，该方法使用了可用于电离反应的动能与氮气中所有其他损失通道的比例。通过计算在500 kPa或1500 kPa氮气中停止的4.3 MeV质子的计算，测试了开发的方法。所开发的方法产生了总电子能量分布函数。然后可以将其用于质子辐照气体中被激发的原子和分子物种的反应动力学的数值模拟。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号