首页> 外文学位 >Interaction cross sections needed for simulation of secondary electron emission spectra from thin metal foils after fast proton impact.
【24h】

Interaction cross sections needed for simulation of secondary electron emission spectra from thin metal foils after fast proton impact.

机译:快速质子撞击后,需要模拟薄金属箔的二次电子发射光谱的相互作用截面。

获取原文
获取原文并翻译 | 示例

摘要

Monte Carlo simulations of secondary electron emission from thin metal foils after fast proton impact require reliable interaction cross sections with the target under consideration. Total and energy differential inelastic cross sections have been derived for aluminum, copper, and gold thin-metal foils within the plane-wave first Born approximation (PWFBA) that factorizes the double cross section into the generalized oscillator strength and kinematic factors. The generalized oscillator strength or Bethe surface of the medium is obtained by using a semi-empirical optical oscillator strength distribution published in the literature and an extension algorithm based on the delta-oscillator model. Energy differential, total, and stopping cross sections are then obtained by simple integrations. Comparisons with other calculations and experimental values from the literature show that our model offers a good agreement in the energy range considered. As a final step, the cross sections and a transport model for copper have been implemented into the Monte Carlo track structure code PARTRAC where simulations of secondary electron emission spectra from copper foil have been performed.
机译:质子快速撞击后从薄金属箔发出的二次电子的蒙特卡洛模拟需要可靠的相互作用截面与所考虑的靶标。已经在平面波优先博恩近似(PWFBA)中得出了铝,铜和金薄金属箔的总和能量差分非弹性截面,该系数将双截面分解为广义的振子强度和运动学因子​​。通过使用文献中公开的半经验光学振荡器强度分布和基于增量振荡器模型的扩展算法,可以获得介质的广义振荡器强度或Bethe表面。然后,可以通过简单的积分获得能量差,总截面和终止截面。与其他计算和文献中的实验值进行比较表明,我们的模型在考虑的能量范围内提供了良好的一致性。作为最后一步,已在Monte Carlo轨道结构代码PARTRAC中实现了铜的横截面和传输模型,其中已对铜箔的二次电子发射光谱进行了模拟。

著录项

  • 作者

    Travia, Anderson.;

  • 作者单位

    East Carolina University.;

  • 授予单位 East Carolina University.;
  • 学科 Physics Condensed Matter.;Physics Radiation.;Physics Theory.
  • 学位 M.S.
  • 年度 2009
  • 页码 119 p.
  • 总页数 119
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-17 11:38:24

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