Theorectical and computational studies of electron and positron collisions with atomic and molecular systems

电子和正电子与原子和分子系统碰撞的理论和计算研究

• 批准号: 238823-2006
• 负责人: Stauffer, Allan
• 金额: $ 2.3万
• 依托单位: York University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Group
• 财政年份: 2008
• 资助国家: 加拿大
• 起止时间: 2008-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=394079
• 关键词: Theorectical; computational; studies; electron; positron

We are investigating the scattering of electrons and positrons (which are the antiparticles of electrons) from atoms and molecules.  We run large-scale computer programs to calculate what happens when free electrons and positrons collide with atoms and molecules in a gas.  We work closely with experimental groups measuring these processes in order to understand the fundamental physics which they involve.  This helps us to develop better theoretical models to describe these collisions at the most detailed quantum mechanical levels possible.  We also use our calculated data to help model an x-ray detector called a gas proportional scintillation counter which are used in x-ray astonomy aboard satellites, for example.  These data are also important for developing better lighting sources and plasma display panels.

我们正在研究电子和正电子的散射（电子的反粒子）从原子和分子中分离出来。我们跑得很大--大规模的计算机程序来计算当自由电子和正电子与气体中的原子和分子碰撞时会发生什么。我们与测量这些过程的实验小组密切合作，以了解它们所涉及的基本物理学。这有助于我们发展更好的理论我们还使用我们计算的数据来帮助模拟一种称为气体比例闪烁计数器的X射线探测器，例如，这种探测器用于卫星上的X射线天文学。这些数据对于开发更好的光源和等离子体显示面板也很重要。