Electronics system for the cosmic X-ray polarization detector  

作　　者：Hui Wang Dong Wang Ran Chen Yan-Wei Kui Hong-Bang Liu Zong-Wang Fan Huan-Bo Feng Jin Li Jun Liu Qian Liu Shi Chen Yuan-Kang Yang Zhuo Zhou Zi-Li Li Shi-Qiang Zhou Ni Fang 

机构地区：[1]PLAC,Key Laboratory of Quark&Lepton Physics(MOE),Central China Normal University,Wuhan 430079,China [2]Guangxi Key Laboratory for Relativistic Astrophysics,School of Physical Science and Technology,Guangxi University,Nanning 530004,China [3]Key Laboratory of Particle Astrophysics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China [4]School of Physical Science,University of Chinese Academy of Sciences,Beijing 100049,China [5]School of Science,Huzhou University,Huzhou 313000,China

出　　处：《Nuclear Science and Techniques》2023年第5期1-12,共12页核技术（英文）

基　　金：supported by the National Natural Science Foundation of China (Nos.11875146,U1932143);National Key Research and Development Program of China (No.2020YFE0202002)。

摘　　要：This study presents an electronics system for cosmic X-ray polarization detection(CXPD).The CXPD was designed as a high-sensitivity soft X-ray polarimeter with a measurement energy range of 2-10 keV carried by a CubeSat.A stable and functionally complete electronics system under power and space constraints is a key challenge.The complete CXPD electronics system(CXPDES)comprises hardware and firmware.CXPDES adopts a three-layer electronic board structure based on functionality and available space.Two gas pixel detectors(GPDs)were placed on the top layer board,and CXPDES provided the GPDs with voltages up to-4000 V.Each GPD signal was digitized,compressed,encoded,and stored before being transmitted to the ground.The CXPDES provided stable and high-speed communication based on a scheme that separated command and data transmission,and it supports the CXPDES in-orbit upgrade.In addition,environmental monitors,silicon photomultiplier(SiPM)triggers,power management,GPDs configuration,and mode switches were included in the overall operating logic of the CXPDES.The results obtained by testing the CXPDES showed that it satisfied all the requirements of CXPD.The CXPDES provides design experience and technological readiness for future large-area X-ray polarimetry missions.

关 键 词：X-ray polarimeter ELECTRONICS CUBESAT Gas pixel detector FPGA 

分 类 号：P172.2[天文地球—天文学]