标题： 单色X射线设施 at NIM 显示英文标题

标题： The monochromatic X-rays facilities at NIM

摘要： 空间科学探索正成为人类探索宇宙的主要战场。 世界各国相继发射了各种空间探测卫星。 地面精确校准是空间科学卫星获得观测结果的关键因素。 为了为各种星载探测器提供校准，国家计量院，中华人民共和国（NIM）已建造了几种单色X射线设施。 这些设施主要基于光栅衍射和布拉格衍射，产生的单色X射线的能量范围是（0.218-301）keV。 这些设施在能量稳定性、单色性和通量稳定性方面表现良好。 所有设施的单色性优于3.0%，8小时内的能量稳定性优于1.0%，8小时内的通量稳定性优于2.0%。 可以在这些设施上进行星载探测器的校准实验，例如能量线性度、能量分辨率、探测效率和温度响应。 到目前为止，我们已经完成了两颗卫星的校准，还有三颗卫星正在进行中。 这项工作将有助于X射线天文学的发展，并有助于中国空间科学的发展。 显示英文摘要

摘要： Space scientific exploration is becoming the main battlefield for mankind to explore the universe. Countries around the world have successively launched various space exploration satellites. Accurate calibration on the ground is a key factor for space science satellites to obtain observational results. In order to provide calibration for various satellite-borne detectors, several monochromatic X-rays facilities has been built at National Institute of Metrology, P.R. China (NIM). These facilities are mainly based on grating diffraction and Bragg diffraction, the energy range of produced monochromatic X-rays is (0.218-301) keV. The facilities have a good performance on energy stability, monochromaticity and flux stability. Monochromaticity of all facilities is better than 3.0%, the stability of energy is better than 1.0% over 8 hours, and the stability of flux is better than 2.0% over 8 hours. The calibration experiments of satellite-borne detectors, such as energy linearity, energy resolution, detection efficiency and temperature response can be carried out on the facilities. So far we have completed the calibration of two satellites, and there are still three satellites in progress. This work will contribute to the development of X-ray astronomy, and contribute to the development of Chinese space science.