Design, implementation, and performance of the Astro-H SXS calorimeter array and anticoincidence detector
Design, implementation, and performance of the Astro-H SXS calorimeter array and anticoincidence detector
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Astro-H SXS 热量计阵列和反符合探测器的设计、实现和性能
DOI：
10.1117/1.jatis.4.1.011214
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Junping Zhao
中科院分区：
文献类型：
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作者：
C. Kilbourne;J. Adams;R. Brekosky;J. Chervenak;M. Chiao;M. Eckart;E. Figueroa;M. Galeazzi;C. Grein;C. Jhabvala;D. Kelly;M. Leutenegger;D. McCammon;F. Scott Porter;A. Szymkowiak;Tomomi Watanabe;Junping Zhao
抽象的。日本宇宙航空研究开发机构Astro-H（改名为Hitomi）软X射线光谱仪（SXS）的量热计阵列旨在提供空间扩展宇宙X射线源和Fe-K波段约6千电子伏的所有宇宙X射线源的前所未有的光谱分辨率，从而能够进行基本的等离子体诊断。SXS在焦平面上有一个由36个X射线量热计组成的正方形阵列。这些量热计由离子注入硅热敏电阻和碲化汞热化X射线吸收器组成。这些设备表现出优于4.5 eV的分辨率在6千电子伏时，在50 mK的热沉温度下操作。我们将讨论这个阵列的基本物理参数，包括阵列布局，热传导的链接到散热器，电阻函数，吸收器的细节，以及将吸收器连接到晶闸管轴承元件的方法。我们还将介绍整个阵列的热特性，包括热导和串扰测量以及通过α粒子，热脉冲和环境背景脉冲帧温度的结果。一个硅离子化探测器位于量热计阵列的后面，用于拒绝宇宙射线引起的事件。我们将简要描述这种反符合探测器及其性能。
Abstract. The calorimeter array of the JAXA Astro-H (renamed Hitomi) soft x-ray spectrometer (SXS) was designed to provide unprecedented spectral resolution of spatially extended cosmic x-ray sources and of all cosmic x-ray sources in the Fe-K band around 6 keV, enabling essential plasma diagnostics. The SXS had a square array of 36 x-ray calorimeters at the focal plane. These calorimeters consisted of ion-implanted silicon thermistors and HgTe thermalizing x-ray absorbers. These devices demonstrated a resolution of better than 4.5 eV at 6 keV when operated at a heat-sink temperature of 50 mK. We will discuss the basic physical parameters of this array, including the array layout, thermal conductance of the link to the heat sink, resistance function, absorber details, and means of attaching the absorber to the thermistor-bearing element. We will also present the thermal characterization of the whole array, including thermal conductance and crosstalk measurements and the results of pulsing the frame temperature via alpha particles, heat pulses, and the environmental background. A silicon ionization detector was located behind the calorimeter array and served to reject events due to cosmic rays. We will briefly describe this anticoincidence detector and its performance.
朱雀高分辨率 X 射线光谱仪
DOI：
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发表时间：
2007
期刊：
Publications of the Astronomical Society of Japan 59・SP1(印刷中)
影响因子：
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作者：
R.L.Kelly;K.Mitsuda;C.A.Allen;P.Arsenovis;et al.
通讯作者：
et al.