中国散裂中子源Muon束流提供了国内首个Muon科学研究平台，在生命科学，材料科学，能源科学和核安全等领域有重要作用。研究Muon及其次级粒子与物质的相互作用规律研究是Muon束流多学科应用的关键。本项目以Muon穿过介质的所发生物理过程为基本原理，用Monet Carlo方法和正电子谱学技术，建立计算和实验模型研究Muon束流能量，极化率，材料密度，原子序数，尺寸等与Muon及其次粒子在材料中的散射分布，能量沉积和深度分布的关系。从而为建成后Muon源的成像技术，μSR谱学技术和辐照损伤等Muon科学相关领域的应用提供理论依据和技术支持。

The Muon beam of China Spallation Neutron Source (CSNS) provides the first domestic Muon scientific research platform and plays an important role in the fields of life science, material science, energy science, and nuclear security. Researches about the interaction of Muon and its secondary particles with materials are the key to the multidisciplinary application of Muon beam. Based on the Muon physical processes through medium, this project intends to develop simulation models and experiment system to study the influence of Muon beam energy, polarizability, material density, atomic number, size, etc. on the scattering, energy deposition, implantation profile of Muon and its secondary particles using Monet Carlo simulation and positron annihilation spectroscopy technique. The results of the study could provide a guiding theoretical basis for the application of Muon beam in Muon imaging，μSR and radiation damage, etc.