Abstract：An X-ray fluorescence imaging spectrometer based on silicon PIN photodiodes was designed and constructed for the Chang’E mission, the first lunar spacecraft, and will be in operation at a 200 km circular lunar orbit with one year lifetime. The X-ray fluorescence spectrometer consists of two silicon PIN photodiodes modules, each holds two low energy detector units to analyze the distribution of useful elements and to estimate the abundance on the moon, which is one of the objectives of the X-ray fluorescence spectrometer experiment. The low energy detector unit is 25 mm2 , 500μm thick, with the energy band of 1-10 keV, and energy resolution of: ～5% at 5.9 keV. The ground verification tests of the X-ray spectrometer for Chang’E mission were introduced in the present paper. Taking the energy response matrix of the spectrometer as the foundation and using the direct demodulation technique and fundamental parameter method, the authors performed some quantitative and qualitative analysis of these scientific data which came from the ground verification tests, especially for Mg, Al and Si elements.
张家宇,王焕玉,张承模,梁晓华,杨家卫,汪锦州,曹学蕾,高旻,崔兴柱,彭文溪. 直接解调方法在嫦娥一号卫星X射线谱仪地面验证实验数据分析中的应用[J]. 光谱学与光谱分析, 2008, 28(10): 2450-2454.
ZHANG Jia-yu, WANG Huan-yu, ZHANG Cheng-mo, LIANG Xiao-hua, YANG Jia-wei, WANG Jin-zhou, CAO Xue-lei, GAO Min, CUI Xing-zhu, PENG Wen-xi. Application of Direct Demodulation Technique in Analysis of Ground Verification Test of X-Ray Spectrometer for Chang’E Mission. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(10): 2450-2454.
