缪子源及多学科研究和应用

Multidisciplinary research and applications of muon sources

缪子作为粒子物理标准模型中基本粒子中的一种,因其易产生且性质独特,常被用来作为探针开展从粒子物理研究到基于一种所谓μSR(缪子自旋共振、旋转和弛豫的缩写)技术的多学科研究平台、再到缪束技术的应用等不同领域的科学研究,因此,高性能的缪子源是国际上综合性科学研究的重要实验平台。文章介绍缪子的基本性质、缪子束流的产生、主要应用领域、国际缪子源发展现状和趋势、特别是我国缪子源及缪子科学的发展潜力。随着中国散裂中子源实验缪子源的即将建设,我国缪子科学必将迎来一个极大的发展机遇。

The muon is one of the fundamental particles in the Standard Model of particle physics.As they are easy to obtain and have very special properties,they are often used as a probe to serve research from particle physics to a multidisciplinary platform based on the so-calledμSR(Muon Spin Resonance,Rotation and Relaxation)techniques,to applications based on muon beam techniques.High-performance muon sources are thus important experimental platforms for comprehensive scientific research.This article presents an overview of the basic properties of the muon,the production of muon beams,their main application fields,the history and status of the international muon sources,and in particular the development potential of the muon facilities and muon science in China.The construction of the Experimental Muon Source at China Spallation Neutron Source which will be completed in the next few years will certainly usher in a great opportunity for the development of muon science in China.