伽玛暴偏振探测仪POLAR观测模拟器的研究

近年来借助于伽玛暴快速喷流过程中辐射的偏振特性对于伽玛暴辐射机制及其辐射区几何结构进行研究的课题逐渐成为伽玛暴观测研究领域中的热点研究课题。然而，由于专门用于空间硬X/Gamma射线偏振测量的探测仪器极度稀缺以及偏振观测结果的相对稀少，使得科学家对于即将发射升空的中欧合作伽玛暴偏振探测仪POLAR的期望非常之高。本项目以POLAR项目为背景，通过开发一套POLAR在轨观测模拟器，利用Monte-Carlo模拟的方法对POLAR未来在轨时的伽玛暴偏振观测能力进行研究。同时，POLAR入轨后，该观测模拟器将对POLAR的正常运行、观测以及后续的数据处理和分析提供极大的帮助。

In recent years, the study of the Gamma-Ray Burst (GRB) prompt emission mechanism and radiation region geometry by using the polarization property has become the top focus research issue in the GRB observation and research field. The scientists give high expectations on the Gamma-Ray Burst Polarimeter – POLAR project which is expected to launch in the quite near future under the colaboration framework between China and Europe, because of the very lack of dedicated instrument in orbit for hard X/Gamma ray polarization measurement and rare of the observation results. To take the POLAR experiment as the study background, our project will study the polarization measurement performances of POLAR by Monte-Carlo simulation methods through developing a set of POLAR in-orbit observation simulator. In the same time, this observation simulator will be highly useful for POLAR in-orbit operation, experiment and the following data process and analysis after the launch of POLAR.