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arXiv 2112.04787astro-ph.IMastro-ph.HE
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GECAM的GRD的地面校准和表征：8-160 keV

Ground-based calibration and characterization of GRD of GECAM: 8-160 keV

J. J. He, Z. H. An, W. X. Peng, X. Q. Li, S. L. Xiong, D. L. Zhang, R. Qiao, D. Y. Guo, C. Cai, Z. Chang, C. Chen, G. Chen, Y. Y. Du, M. Gao, R. Gao, K. Gong, D… 展开作者

J. J. He, Z. H. An, W. X. Peng, X. Q. Li, S. L. Xiong, D. L. Zhang, R. Qiao, D. Y. Guo, C. Cai, Z. Chang, C. Chen, G. Chen, Y. Y. Du, M. Gao, R. Gao, K. Gong, D. J. Hou, C. Y. Li, G. Li, L. Li, M. S. Li, X. B. Li, X. F. Li, Y. G. Li, X. H. Liang, J. C. Liu, X. J. Liu, Y. Q. Liu, H. Lu, X. Ma, B. Meng, F. Shi, L. M. Song, X. L. Sun, C. W. Wang, H. Wang, H. Z. Wang, J. Z. Wang, Y. S. Wang, X. Wen, X. Y. Wen, S. Xiao, Y. B. Xu, Y. P. Xu, W. C. Xue, J. W. Yang, S. Yang, Q. B. Yi, C. M. Zhang, C. Y. Zhang, Fan Zhang, Fei Zhang, P. Zhang, S. N. Zhang, Y. Q. Zhang, X. Y. Zhao, Y. Zhao, C. Zheng, S. J. Zheng, X. Zhou, Y. Zhu

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16 pages,46 figures
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摘要：

GRD探测器作为GECAM卫星的主探测器，其能量响应和探测效率的定标是地面定标的主要内容。校准目标要求校准的能量点尽可能多地对全能量范围（8 keV-2 MeV）进行采样。低能带（8-160 keV）用X射线束校准，而高能带（>160 keV）用放射源校准。本文主要研究了溴化镧晶体吸收边附近的精细测量，标定了溴化镧晶体在8-160 keV能量范围内的能量响应和探测效率。详细分析了不同晶体类型、不同数据采集方式、不同工作模式和不同入射位置下的GRD性能。我们表明，校准活动是全面的，校准结果与预期的模拟基本一致。

英文摘要：

As the main detector of the GECAM satellite, the calibration of the energy response and detection efficiency of the GRD detector is the main content of the ground-based calibration. The calibration goal requires the calibrated energy points to sample the full energy range (8 keV-2 MeV) as much as possible. The low energy band (8-160 keV) is calibrated with the X-ray beam, while the high energy band (>160 keV) with radioactive sources. This article mainly focuses on the calibration of the energy response and detection efficiency in the 8-160 keV with a refined measurement around the absorption edges of the lanthanum bromide crystal. The GRD performances for different crystal types, data acquisition modes, working modes, and incident positions are also analyzed in detail. We show that the calibration campaign is comprehensive, and the calibration results are generally consistent with simulations as expected.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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