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Research and establishment of the X-ray monochromator at the 100XF

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Abstract

The 100-m X-ray Test Facility (100XF) was developed according to the calibration requirement of the first X-ray astronomical satellite Insight-HXMT in china. After that, the 100XF has provided calibration services for other X-ray astronomical satellites. In order to test the energy response matrices of space-borne detectors and to extend the capability of 100XF, a monochromator based on channel-cut crystals is developed. So far, 3.0-20.7 keV monochromatic X-rays have been realized successfully with Si(111) crystal. The monochromaticity (\(\Delta \) \(\mathrm E_\textrm{FWHM}\)/E) is better than 0.6% @5.9 keV, the flux stability can reach 2.6% in about one hour. The energy stability is particularly good, the variation is 0.05% in about one hour. Further more, the beam spot spreads in the plane orthogonal to the rocking direction after a propagation of 100-meter, which is sufficient and useful for testing detectors with large sensitive area. In this paper, we present the research and establishment of the X-ray monochromator at the 100XF.

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Funding

This study is supported by the Fund of Jia-Lin Xie of IHEP (Grant No.E25466U2), and the Strategic Priority Program on Space Science, the Chinese Academy of Sciences (Grant No. XDA15020501 and No. XDA1531010301).

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Authors and Affiliations

  1. Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road, Beijing, 100049, China

    Dongjie Hou, Yifan Zhang, Yuxuan Zhu, Zijian Zhao, Ziliang Zhang, Xiongtao Yang, Jia Ma, He Xu, Yong Chen, Yupeng Xu, Yusa Wang & Congzhan Liu

  2. University of Chinese Academy of Sciences, Chinese Academy of Sciences, Yuquan Road, Beijing, 100049, China

    Dongjie Hou, Yifan Zhang, Zijian Zhao & Yupeng Xu

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  1. Dongjie Hou
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Contributions

Dongjie Hou is responsible for the design, implementation, and data analysis of this study, as well as writing the first draft of the paper. Yusa Wang and Congzhan Liu are responsible for the construction of the facility and provided guidance and supervision for the manuscript. Yifan Zhang, Yuxuan Zhu and Zijian Zhao are responsible for equipment operation and data recording during the test. Ziliang Zhang provides support for the test of radioactive source Fe-55. Xiongtao Yang and Jia Ma participate in the test and conduct vacuum condition monitoring. He Xu, Yong Chen and Yupeng Xu provide great help for construction of the facility and provide useful suggestions for the manuscript. All authors reviewed and approved the final manuscript.

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Correspondence to Yusa Wang or Congzhan Liu.

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Hou, D., Zhang, Y., Zhu, Y. et al. Research and establishment of the X-ray monochromator at the 100XF. Exp Astron 57, 21 (2024). https://doi.org/10.1007/s10686-024-09941-z

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