| Thermal analysis and expected performance of the low energy instrument on board the HXMT satellite |
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| 作者姓名： | 王于仨 陈勇 徐玉朋 王娟 崔苇苇 李炜 韩大炜 张子良 陈田祥 李承奎 杨彦佶 刘晓艳 霍嘉 张俊敏 郑伊茜 |
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| 作者单位： | Key Laboratory for Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), 19B Yuquan Road, Beijing 100049, China; College of Physics, Jilin University, No.2519, Jiefang Road, Changchun 130023, China; College of Electrical and Control Engineering, XI'AN University of Science and Technology, No.58, Yanta Road, Xi'an 710054, China; School of Instrument Science and Opto-electronics Engineer, Beihang University, Beijing 100191, China |
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| 基金项目： | Supported by HXMT Project |
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| 摘 要： | The Low Energy X-ray Instrument （LE） of the Hard X-ray Modulation Telescope （HXMT） uses the Swept Charge Device （SCD） to detect the X-rays in 1-15 keV. The performance of SCD is vulnerable to temperature. We analyzed the thermal condition of LE at different satellite working attitudes with the Finite Element Method （FEM）. It is shown that the angle between the sunlight and the normal line of the barrier should be less them 26°, to keep the SCD detectors working in the required temperature range, i.e. -40 ℃ to -80 ℃. We find that the performance of LE is very stable in this temperature range, with a typical energy resolution of 160 eV at 5.9 keV.
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| 关 键 词： | 仪器仪表 HXMT 低能量 硬X射线调制望远镜 卫星 热分析 温度范围 绩效 |
| 收稿时间： | 2010-2-1 |
| 修稿时间： | 2010-4-6 |
Thermal analysis and expected performance of the low energy instrument on board the HXMT satellite |
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| WANG Yu-Sa CHEN Yong,XU Yu-Peng WANG Juan,CUI Wei-Wei LI Wei,HAN Da-Wei ZHANG Zi-Liang CHEN Tian-Xiang LI Cheng-Kui YANG Yan-Ji LIU Xiao-Yan HUO Jia,ZHANG Jun-Min ZHENG Yi-Qian.Thermal analysis and expected performance of the low energy instrument on board the HXMT satellite[J].High Energy Physics and Nuclear Physics,2010,34(12):1812-1817. |
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| Authors: | WANG Yu-Sa CHEN Yong XU Yu-Peng WANG Juan CUI Wei-Wei LI Wei HAN Da-Wei ZHANG Zi-Liang CHEN Tian-Xiang LI Cheng-Kui YANG Yan-Ji LIU Xiao-Yan HUO Jia ZHANG Jun-Min ZHENG Yi-Qian |
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| Institution: | ( ] Key Laboratory for Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), 19B Yuquan Road, Beijing 100049, China 2 College of Physics, Jilin University, No.2519, Jiefang Road, Changchun 130023, China 3 College of Electrical and Control Engineering, XI＇AN University of Science and Technology, No.58, Yanta Road, Xi＇an 710054, China4 School of Instrument Science and Opto-electronics Engineer, Beihang University, Beijing 100191, China) |
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| Abstract: | LE, HXMT, satellite attitude, thermal calculation |
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| Keywords: | LE HXMT satellite attitude thermal calculation |
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