The development,performances and applications of the monochromatic X-rays facilities in(0.218-301)keV at NIM,China

• 作者: Si-Ming Guo Jin-Jie Wu Dong-Jie Hou
• 来源期刊: 核技术（英文版）
• 年，卷（期）: 2021,（6）
• 所属期刊栏目: ACCELERATOR,RAY TECHNOLOGY AND APPLICATIONS
• 页码范围: 60-73
• 页数: 14页
• 语种: 英文

摘要

Space scientific exploration is rapidly becoming the primary battlefield for humankind to explore the uni-verse.Countries worldwide have launched numerous space exploration satellites.Accurate calibration of the detectors on the ground is a crucial element for space science satellites to obtain observational results.For the purpose of providing calibration for various satellite-borne detectors,multiple monochromatic X-rays facilities have been built at the National Institute of Metrology,P.R.China(NIM).These facilities mainly pertain to grating diffraction and Bragg diffraction,and the energy range of the produced monochromatic X-rays is 0.218-301 keV.These facilities have a high performance in terms of energy stability,monochromaticity,and flux stability.The monochro-maticity was greater than 3.0％.The energy stability of the facility is 0.02％at 25 keV over 8 h,and the flux stability was within 1.0％at 25 keV over 8 h.Calibration experi-ments on the properties of satellite-borne detectors,such as energy linearity,energy resolution,detection efficiency,and temperature response,can be conducted at the facili-ties.Thus far,the calibration of two satellites has been completed by the authors,and the work on three other satellites is in progress.This study will contribute to the advancement of X-ray astronomy the development of Chinese space science.