Collision Studies with Laser-Cooled Metastable Helium Atoms - Recoil Atom Spectroscopy

激光冷却亚稳态氦原子的碰撞研究 - 反冲原子光谱

• 批准号: DP0343794
• 负责人: Em/Prof Stephen Buckman
• 金额: $ 18.45万
• 依托单位: The Australian National University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-01-01 至 2005-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0343794
• 关键词: Collision; Studies; Laser; Cooled; Metastable

This project will provide the first absolute, differential measurements of the scattering of low energy electrons from metastable excited helium atoms. Laser-cooling techniques are used to create a bright, slow helium beam and a unique approach, where the recoiling atoms are detected, is used for the scattering measurements. Such measurements are of critical importance in the assessment of new scattering theories for excited states and in understanding the role which excited species play in the behaviour of low temperature gas discharges and thus also on the operation of many important devices and phenomena which are based on discharge technology.

该项目将提供第一个绝对差异测量值，从亚稳态激发氦原子中低能电子的散射。 激光冷却技术用于创建明亮的，慢速的氦束和独特的方法，其中检测到后退原子，用于散射测量。 这种测量在评估激发态的新散射理论以及了解激发物种在低温气体排放的行为中起作用的作用以及许多重要的设备和基于放电技术的现象的运行方面起着至关重要的重要性。