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

IF 2.7 3区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS

Experimental Astronomy Pub Date : 2024-05-11 DOI:10.1007/s10686-024-09941-z

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

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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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在 100XF 研究和建立 X 射线单色仪

100 米 X 射线测试设备（100XF）是根据中国第一颗 X 射线天文卫星 Insight-HXMT 的校准要求开发的。此后，100XF 为其他 X 射线天文卫星提供了校准服务。为了测试空间探测器的能量响应矩阵并扩展 100XF 的能力，开发了一种基于通道切割晶体的单色仪。迄今为止，利用硅（111）晶体成功实现了 3.0-20.7 千伏单色 X 射线。其单色性（\(\Delta \) \(\mathrm E_\textrm{FWHM}\)/E）在5.9 keV时优于0.6%，流量稳定性可在一小时左右达到2.6%。能量稳定性尤其出色，在一小时左右的时间内，能量变化仅为 0.05%。此外，光束传播 100 米后，光斑会在与摇摆方向正交的平面上扩散，这对于测试具有较大敏感区域的探测器是足够和有用的。本文介绍了 100XF X 射线单色仪的研究和建立情况。

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来源期刊

Experimental Astronomy 地学天文-天文与天体物理

CiteScore

5.30

自引率

3.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Many new instruments for observing astronomical objects at a variety of wavelengths have been and are continually being developed. Furthermore, a vast amount of effort is being put into the development of new techniques for data analysis in order to cope with great streams of data collected by these instruments. Experimental Astronomy acts as a medium for the publication of papers of contemporary scientific interest on astrophysical instrumentation and methods necessary for the conduct of astronomy at all wavelength fields. Experimental Astronomy publishes full-length articles, research letters and reviews on developments in detection techniques, instruments, and data analysis and image processing techniques. Occasional special issues are published, giving an in-depth presentation of the instrumentation and/or analysis connected with specific projects, such as satellite experiments or ground-based telescopes, or of specialized techniques.