In-flight calibration of the Insight-Hard X-ray Modulation Telescope

被引：76

作者：

Li, Xiaobo ^{[1
]}

Li, Xufang ^{[1
]}

Tan, Ying ^{[1
]}

Yang, Yanji ^{[1
]}

Ge, Mingyu ^{[1
]}

Zhang, Juan ^{[1
]}

Tuo, Youli ^{[1
]}

Wu, Baiyang ^{[1
]}

Liao, Jinyuan ^{[1
]}

Zhang, Yifei ^{[1
]}

Song, Liming ^{[1
,2
]}

Zhang, Shu ^{[1
]}

Qu, Jinlu ^{[1
,2
]}

Zhang, Shuang-nan ^{[1
,2
]}

Lu, Fangjun ^{[1
,2
]}

Xu, Yupeng ^{[1
]}

Liu, Congzhan ^{[1
]}

Cao, Xuelei ^{[1
]}

Chen, Yong ^{[1
]}

Nie, Jianyin ^{[1
]}

Zhao, Haisheng ^{[1
]}

Li, Chengkui ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing, Peoples R China

[2] Univ Chinese Acad Sci, Beijing, Peoples R China

来源：

JOURNAL OF HIGH ENERGY ASTROPHYSICS | 2020年 / 27卷

基金：

中国国家自然科学基金;

关键词：

X-ray instrument; Insight-HXMT; Calibration;

D O I：

10.1016/j.jheap.2020.02.009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the calibration of the Insight-Hard X-ray Modulation Telescope(Insight-HXMT) X-ray satellite, which can be used to perform timing and spectral studies of bright X-ray sources. Insight-HXMTcarries three main payloads onboard: the High Energy X-ray telescope (HE), the Medium Energy X-ray telescope (ME) and the low Energy X-ray telescope (LE). In orbit, the radioactive sources, activated lines, the fluorescence lines and celestial sources are used to calibrate the energy scale and energy resolution of the payloads. The Crab nebular is adopted as the primary effective area calibrator and empirical functions are constructed to modify the simulated effective areas of the three payloads respectively. The systematic errors of HE, compared to the model of the Crab nebular, are less than 2% in 28-120keV and 2%-10% above 120keV. The systematic errors of ME are less than 1.5% in 10-35keV. The systematic errors of LE are less than 1% in 1-7keV except the Si K-edge (1.839keV, up to 1.5%) and less than 2% in 7-10keV. (C) 2020 Elsevier B.V. All rights reserved.

引用

页码：64 / 76

页数：13

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