Studies of an event-building algorithm of the readout system for the twin TPCs in HFRS

IF 3.6 1区 物理与天体物理 Q1 NUCLEAR SCIENCE & TECHNOLOGY Nuclear Science and Techniques Pub Date : 2024-05-09 DOI:10.1007/s41365-024-01434-0
Jing Tian, Zhi-Peng Sun, Song-Bo Chang, Yi Qian, Hong-Yun Zhao, Zheng-Guo Hu, Xi-Meng Chen
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Abstract

The High-energy Fragment Separator (HFRS), which is currently under construction, is a leading international radioactive beam device. Multiple sets of position-sensitive twin time projection chamber (TPC) detectors are distributed on HFRS for particle identification and beam monitoring. The twin TPCs’ readout electronics system operates in a trigger-less mode due to its high counting rate, leading to a challenge of handling large amounts of data. To address this problem, we introduced an event-building algorithm. This algorithm employs a hierarchical processing strategy to compress data during transmission and aggregation. In addition, it reconstructs twin TPCs’ events online and stores only the reconstructed particle information, which significantly reduces the burden on data transmission and storage resources. Simulation studies demonstrated that the algorithm accurately matches twin TPCs’ events and reduces more than 98% of the data volume at a counting rate of 500 kHz/channel.

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高频红外热像仪双 TPC 读出系统的事件构建算法研究
目前正在建造的高能碎片分离器(HFRS)是国际领先的放射性束装置。高能碎片分离器上分布着多套位置敏感的双时间投影室(TPC)探测器,用于粒子识别和束流监测。由于双 TPC 的计数率很高,其读出电子系统以无触发模式运行,这给处理大量数据带来了挑战。为解决这一问题,我们引入了一种事件构建算法。该算法采用分层处理策略,在传输和聚合过程中压缩数据。此外,它还能在线重建孪生 TPC 事件,并只存储重建后的粒子信息,从而大大减轻了数据传输和存储资源的负担。仿真研究表明,该算法能准确匹配孪生 TPC 事件,并在 500 kHz/通道的计数率下减少了 98% 以上的数据量。
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来源期刊
Nuclear Science and Techniques
Nuclear Science and Techniques 物理-核科学技术
CiteScore
5.10
自引率
39.30%
发文量
141
审稿时长
5 months
期刊介绍: Nuclear Science and Techniques (NST) reports scientific findings, technical advances and important results in the fields of nuclear science and techniques. The aim of this periodical is to stimulate cross-fertilization of knowledge among scientists and engineers working in the fields of nuclear research. Scope covers the following subjects: • Synchrotron radiation applications, beamline technology; • Accelerator, ray technology and applications; • Nuclear chemistry, radiochemistry, radiopharmaceuticals, nuclear medicine; • Nuclear electronics and instrumentation; • Nuclear physics and interdisciplinary research; • Nuclear energy science and engineering.
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