Design and test of a portable Gamma-Ray Burst simulator for GECAM

被引：0
|
作者：
Can Chen
Shuo Xiao
Shaolin Xiong
Nian Yu
Xiangyang Wen
Ke Gong
Xinqiao Li
Chaoyang Li
Dongjie Hou
Xiongtao Yang
Zijian Zhao
Yuxuan Zhu
Dali Zhang
Zhenghua An
Xiaoyun Zhao
Yupeng Xu
Yusa Wang
机构：
[1] Chinese Academy of Sciences,Key Laboratory of Particle Astrophysics, Institute of High Energy Physics
[2] Chinese Academy of Sciences,University of Chinese Academy of Sciences
[3] China West Normal University,Physics and space science college
[4] Jilin University,College of Physics
来源：
Experimental Astronomy | 2021年 / 52卷
关键词：
GECAM; Gamma-ray burst; Grid controlled X-ray tube; Simulator;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The main scientific goal of the Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is to monitor various types of Gamma-Ray Bursts (GRB) originated from merger of binary compact stars, which could also produce gravitational wave, and collapse of massive stars. In order to study the response of GECAM Gamma-Ray Detectors (GRDs) to high-energy bursts and test the in-flight trigger and localization software of GECAM before the launch, a portable GRB simulator device is designed and implemented based on grid controlled X-ray tube (GCXT) and direct digital synthesis (DDS) technologies. The design of this GRB simulator which modulates X-ray flux powered by high voltage up to 20 kV is demonstrated, and the time jitter (FWHM) of the device is about 0.9 μs. Before the launch in December, 2020, both two GECAM satellites were irradiated by different types of GRBs (including short and long bursts in duration) generated by this GRB simulator. The light curves detected with GECAM/GRDs are consistent with the programmed input functions within statistical uncertainties, indicating the good performance of both the GRDs and the GRB simulator.
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页码：45 / 58
页数：13
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