An Optimized Collimator Scheme of HXMT

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JIN Ying-Kang, WU Mei, JIN Yong-Jie and ZHUANG Ren-Lin. An Optimized Collimator Scheme of HXMT[J]. Chinese Physics C, 2007, 31(7): 612-616.
JIN Ying-Kang, WU Mei, JIN Yong-Jie and ZHUANG Ren-Lin. An Optimized Collimator Scheme of HXMT[J]. Chinese Physics C, 2007, 31(7): 612-616. shu
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Received: 2006-11-02
Revised: 2006-12-01
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An Optimized Collimator Scheme of HXMT

    Corresponding author: JIN Ying-Kang,
  • Department of Engineering Physics and Center for Astrophysics, Tsinghua University, Beijing 100084, China2 Institute of High Energy Physics, CAS, Beijing 100049, China

Abstract: The performance of the Hard X-ray Modulation Telescope (HXMT) is significantly influenced by the collecting area. Based on the simulations of the background and the point spread function of the instrument, we propose a new collimator scheme in which the weight of the whole detectors can be decreased about 80kg. This is equal to the weight of 5 or more new detectors. We hope this new scheme will help to increase the number of detectors under the total loading mass limit, so that the collecting area will be larger and the performance of HXMT will be better.

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