Ground-based verification and data processing of Yutu rover Active Particle-induced X-ray Spectromet

• 作 者: 郭东亚 王焕玉 彭文溪 崔兴柱 张承模 刘雅清 梁晓华 董亦凡 汪锦州 高旻 杨家卫 张家宇 李春来 邹永廖 张广良 张力岩 付晓辉
• 机 构: Key Laboratory of Particle Astrophysics,Institute of High Energy Physics,Chinese Academy of Sciences
• 出 处: Chinese Physics C
• 发表日期: 2015年07期
• 关键词: verification rover instrumental rock details proportional abundance fitting cali

The Active Particle-induced X-ray Spectrometer(APXS) is one of the payloads on board the Yutu rover of the Chang’E-3 mission. In order to assess the instrumental performance of APXS, a ground verification test was performed for two unknown samples(basaltic rock, mixed powder sample). In this paper, the details of the experiment configurations and data analysis method are presented. The results show that the elemental abundance of major elements can be well determined by the APXS with relative deviations <15 wt.%(detection distance=30 mm,acquisition time=30 min). The derived detection limit of each major element is inversely proportional to acquisition time and directly proportional to detection distance, suggesting that the appropriate distance should be <50 mm.

The Active Particle-induced X-ray Spectrometer (APXS) is one of the payloads on board the Yutu rover of the Chang’E-3 mission. In order to assess the instrumental performance of APXS, a ground verification test was performed for two unknown The results show that the elemental abundance of major elements can be determined by the APXS with relative deviations <15 wt .% (detection distance = 30 mm, acquisition time = 30 min). The derived detection limit of each major element is inversely proportional to acquisition time and directly proportional to detection distance, suggesting that the appropriate distance should be <50 mm.