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Laboratory verification of the Active Particle-induced X-ray Spectrometer (APXS) on the Chang'e-3 mission
Zhang, GL; Li, CL; Fu, XH; Zhang, LY; Ban, C; Li, H; Zou, YL; Peng, WX; Cui, XZ; Zhang, CM; Wang, HY; Peng WX(彭文溪); Cui XZ(崔兴柱); Zhang CM(张承模); Wang HY(王焕玉)
2015
发表期刊RESEARCH IN ASTRONOMY AND ASTROPHYSICS
卷号15期号:11页码:1893-1904
文章类型Article
摘要In the Chang'e-3 mission, the Active Particle-induced X-ray Spectrometer (APXS) on the Yutu rover is used to analyze the chemical composition of lunar soil and rock samples. APXS data are only valid are only if the sensor head gets close to the target and integration time lasts long enough. Therefore, working distance and integration time are the dominant factors that affect APXS results. This study confirms the ability of APXS to detect elements and investigates the effects of distance and time on the measurements. We make use of a backup APXS instrument to determine the chemical composition of both powder and bulk samples under the conditions of different working distances and integration times. The results indicate that APXS can detect seven major elements, including Mg, Al, Si, K, Ca, Ti and Fe under the condition that the working distance is less than 30 mm and having an integration time of 30 min The statistical deviation is smaller than 15%. This demonstrates the instrument's ability to detect major elements in the sample. Our measurements also indicate the increase of integration time could reduce the measurement error of peak area, which is useful for detecting the elements Mg, Al and Si. However, an increase in working distance can result in larger errors in measurement, which significantly affects the detection of the element Mg.
关键词major elements: working distance integration time APXS: Chang'e-3 mission
学科领域Astronomy & Astrophysics
DOI10.1088/1674-4527/15/11/011
收录类别SCI
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000365467400011
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228851
专题粒子天体物理中心
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Zhang, GL,Li, CL,Fu, XH,et al. Laboratory verification of the Active Particle-induced X-ray Spectrometer (APXS) on the Chang'e-3 mission[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2015,15(11):1893-1904.
APA Zhang, GL.,Li, CL.,Fu, XH.,Zhang, LY.,Ban, C.,...&王焕玉.(2015).Laboratory verification of the Active Particle-induced X-ray Spectrometer (APXS) on the Chang'e-3 mission.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,15(11),1893-1904.
MLA Zhang, GL,et al."Laboratory verification of the Active Particle-induced X-ray Spectrometer (APXS) on the Chang'e-3 mission".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 15.11(2015):1893-1904.
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