空间高能(甚高能)伽玛射线观测在现代天体物理研究中具有重要意义，观测数据可以用来研究高能粒子的起源和加速，高能天体如脉冲星，活动星系核，类星体等的辐射机制。甚大面积空间伽玛射线望远镜（VLAST）是在中国科学院紫金山天文台提出预研的下一代空间伽玛射线望远镜。它具有物理接收度大，空间角分辨高，能量分辨高，强子/伽玛鉴别能力强等特点。本项目主要根据VLAST项目需要，研究优化硅微条径迹探测器配置，提高角度分辨率的方法；采用模拟空间环境和探测器响应的方法，设计稳定可靠的触发逻辑。.本项目同时对暗物质粒子探测卫星的数据分析有促进作用。

Measurement of high (very high) energy gamma rays in space has significant physical meaning in modern astrophysics study. It helps to study the origin and acceleration of high energy particles and clarify the radiation mechanism of high energy objects such as pulsars, AGNs and quasars. The Very Large Area Space Telescope (VLAST) is a proposed mission focus on high energy cosmic gamma ray observation in space. Comparing with similar detectors, it has larger geometric acceptance, better angular and energy resolution, stronger hadron/gamma separation power. This project is to study the main factors that will influence the angular resolution of the silicon micro strip tracker and to design a set of trigger logic for the detect system. This study also could be helpful to improve the data analysis of DAMPE.