研究了GECAM-C的SiPM-based gamma-ray检测器（GRD）的性能
The performance of SiPM-based gamma-ray detector (GRD) of GECAM-C
摘要：
作为GECAM任务的新成员，GECAM-C（也称为高能暴搜索器，HEBS）是SATech-01卫星上的伽马射线全天监测器，于2022年7月27日发射，用于探测6 keV至6 MeV的伽马射线瞬变，如伽马射线暴（GRB），引力波（GW）和快速射电暴（FRB）的高能对应物，和软伽马射线中继器（SGR）。与2020年12月发射的GECAM-A和GECAM-B一起，GECAM-C将大大改善伽马射线瞬变的监测覆盖范围，定位以及时间和光谱测量。GECAM-C采用12个基于SiPM的伽马射线探测器（GRD）来探测伽马射线瞬变。本文首先简要介绍了GECAM-C GRD的设计，然后重点介绍了GRD的地面试验和飞行性能。并对GECAM-C和GECAM-B的SiPM飞行性能进行了对比研究。结果显示GECAM-C GRD按预期工作，并已准备好进行科学观察。
英文摘要：
As a new member of GECAM mission, the GECAM-C (also called High Energy Burst Searcher, HEBS) is a gamma-ray all-sky monitor onboard SATech-01 satellite, which was launched on July 27th, 2022 to detect gamma-ray transients from 6 keV to 6 MeV, such as Gamma-Ray Bursts (GRBs), high energy counterpart of Gravitational Waves (GWs) and Fast Radio Bursts (FRBs), and Soft Gamma-ray Repeaters (SGRs). Together with GECAM-A and GECAM-B launched in December 2020, GECAM-C will greatly improve the monitoring coverage, localization, as well as temporal and spectral measurements of gamma-ray transients. GECAM-C employs 12 SiPM-based Gamma-Ray Detectors (GRDs) to detect gamma-ray transients . In this paper, we firstly give a brief description of the design of GECAM-C GRDs, and then focus on the on-ground tests and in-flight performance of GRDs. We also did the comparison study of the SiPM in-flight performance between GECAM-C and GECAM-B. The results show GECAM-C GRD works as expected and is ready to make scientific observations.
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