Instrumentation and performance evaluation of the XRS on SELENE orbiter
Instrumentation and performance evaluation of the XRS on SELENE orbiter
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SELENE 轨道器上 XRS 的仪器和性能评估
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
M. Kato
中科院分区：
文献类型：
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作者：
K. Shirai;T. Okada;Yukio Yamamoto;T. Arai;K. Ogawa;Hiroaki Shiraishi;M. Iwasaki;M. Iwasaki;Masahiko Arakawa;Manuel Grande;M. Kato;M. Kato
日本月球极地轨道飞行器“月亮女神”上的x射线荧光光谱仪（XRS）将在特征K-α x射线线发射能量范围内提供月球表面主要元素组成Mg， Al, Si, Ca， Ti和Fe的全球分布。这些测量将有助于研究月球的起源和演变。利用电荷耦合器件（CCD）作为光子能量色散探测器，XRS在5.9 keV下具有良好的200 eV能量分辨率。面向月球表面的主探测器总集合面积为100 cm2，由16个CCD芯片组成。介绍了XRS的仪器和实验室性能评价。
The x-ray fluorescence spectrometer (XRS) on board Japanese lunar polar orbiter SELENE (Kaguya) will provide global distribution of major elemental composition on the lunar surface in energy range of characteristic K-α x-ray line emission for Mg, Al, Si, Ca, Ti, and Fe. These measurements will contribute to research of lunar origin and its evolution. The XRS shows a good energy resolution within 200 eV at 5.9 keV relying on charge coupled device (CCD) as photon energy dispersive detector. Total collective area of 100 cm2 for main detector facing the lunar surface is composed of 16 CCD chips. Instrumentation of the XRS and its performance evaluated in laboratory are presented.