DAMPE silicon tracker on-board data compression algorithm

The Dark Matter Particle Explorer（DAMPE） is an upcoming scientific satellite mission for high energy gamma-ray, electron and cosmic ray detection. The silicon tracker（STK） is a subdetector of the DAMPE payload.It has excellent position resolution（readout pitch of 242 μm）, and measures the incident d...

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Published inChinese physics C Vol. 39; no. 11; pp. 81 - 86
Main Author 董亦凡 张飞 乔锐 彭文溪 樊瑞睿 龚轲 吴帝 王焕玉
Format Journal Article
LanguageEnglish
Published 01.11.2015
Subjects
Algorithms
Cosmic rays
Dark matter
Data compression
Equivalence
Position measurement
Silicon
Space telescopes
STK
位置分辨率
数据压缩算法
硅微条探测器
粒子探测器
跟踪器
车载
阻尼
Online AccessGet full text
ISSN1674-1137
0254-3052
DOI10.1088/1674-1137/39/11/116202

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Summary:The Dark Matter Particle Explorer（DAMPE） is an upcoming scientific satellite mission for high energy gamma-ray, electron and cosmic ray detection. The silicon tracker（STK） is a subdetector of the DAMPE payload.It has excellent position resolution（readout pitch of 242 μm）, and measures the incident direction of particles as well as charge. The STK consists of 12 layers of Silicon Micro-strip Detector（SMD）, equivalent to a total silicon area of6.5 m2. The total number of readout channels of the STK is 73728, which leads to a huge amount of raw data to be processed. In this paper, we focus on the on-board data compression algorithm and procedure in the STK, and show the results of initial verification by cosmic-ray measurements.
Bibliography:The Dark Matter Particle Explorer（DAMPE） is an upcoming scientific satellite mission for high energy gamma-ray, electron and cosmic ray detection. The silicon tracker（STK） is a subdetector of the DAMPE payload.It has excellent position resolution（readout pitch of 242 μm）, and measures the incident direction of particles as well as charge. The STK consists of 12 layers of Silicon Micro-strip Detector（SMD）, equivalent to a total silicon area of6.5 m2. The total number of readout channels of the STK is 73728, which leads to a huge amount of raw data to be processed. In this paper, we focus on the on-board data compression algorithm and procedure in the STK, and show the results of initial verification by cosmic-ray measurements.
11-5641/O4
DONG Yi-Fan, ZHANG Fei, QIAO Rui, PENG Wen-Xi,FAN Rui-Rui,GONG Ke, WU Di,WANG Huan-Yu（ 1 Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China; 2 University of Chinese Academy of Sciences, Beijing 100049, China）
silicon tracker, silicon micro-strip detector, data compression
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ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/39/11/116202