Experiments with Antimatter: Investigating Positron Interactions with Atoms, Molecules and Materials

反物质实验：研究正电子与原子、分子和材料的相互作用

• 批准号: DP0449473
• 负责人: A/Prof James Sullivan
• 金额: $ 37.29万
• 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: 2004
• 资助国家: 澳大利亚
• 起止时间: 2004-01-05 至 2009-11-30
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0449473
• 关键词: Experiments; Antimatter; Investigating; Positron; Interactions

We will construct a trap-based, positron beam line to be used to investigate the interactions of positrons with matter, namely atoms, molecules, and materials. Specific experimental goals include the observation of positron binding to matter and the investigation of the threshold behaviour of processes such as ionisation by positron impact and positronium formation, where correlation between the positron and bound electrons plays an important role. The beam line will also provide a unique facility for the investigation and characterisation of new materials.

我们将构建一个基于陷阱的正电子束流线，用于研究正电子与物质，即原子，分子和材料的相互作用。具体的实验目标包括观察正电子与物质的结合，以及研究过程的阈值行为，如正电子撞击电离和正电子形成，其中正电子和束缚电子之间的相关性起着重要作用。该光束线还将为新材料的研究和表征提供独特的设施。