A distributed data readout method for quality control of CBM-TOF super module detector

Yaxi ZHANG; Ping CAO; Xiru HUANG; Jiajun ZHENG; Di JIANG; Qi AN

doi:10.11889/j.0253-3219.2017.hjs.40.060404

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A distributed data readout method for quality control of CBM-TOF super module detector

NUCLEAR ELECTRONICS AND INSTRUMENTATION | 更新时间：2021-05-19

- A distributed data readout method for quality control of CBM-TOF super module detector
- NUCLEAR TECHNIQUES Vol. 40, Issue 6, Article number: 060404(2017)
- 作者机构：
  
  1.中国科学技术大学核探测与核电子学国家重点实验室合肥 230026
  2.中国科学技术大学近代物理系合肥 230026
  3.中国科学技术大学核科学技术学院合肥 230026
- 作者简介：
- 基金信息：
  
  National Basic Research Program (973 Program);Key Laboratory of Neutron Physics of China Academy of Engineering Physics
- DOI：10.11889/j.0253-3219.2017.hjs.40.060404
  CLC： TL8
- Received：30 January 2017，
  
  Revised：15 March 2017，
  
  Published：10 June 2017
- 稿件说明：
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Yaxi ZHANG, Ping CAO, Xiru HUANG, et al. A distributed data readout method for quality control of CBM-TOF super module detector[J]. Nuclear techniques, 2017, 40(6): 060404
DOI：

Yaxi ZHANG, Ping CAO, Xiru HUANG, et al. A distributed data readout method for quality control of CBM-TOF super module detector[J]. Nuclear techniques, 2017, 40(6): 060404 DOI： 10.11889/j.0253-3219.2017.hjs.40.060404.

摘要

高压缩重子物质（Compressed Baryonic Matter，CBM）实验装置飞行时间谱仪利用由多气隙电阻板室（Multi-gap Resistive Plate Chamber，MRPC）探测器构建的超级模块实现高密度、高精度的粒子飞行时间测量，该超级模块可支持高达320通道的高精度时间测量能力，数据率高达6Gbit·s

-1

。为实现超级模块探测器的性能评估，提出一种基于千兆以太网的分布式数据读出方法，利用片上系统技术实现读出节点的千兆网络传输能力。测试结果表明，针对单条数据传输路径，原型读出模块在全链路情况下，能实现约467Mbit·s

-1

的综合数据传输速率。读出方案中事例组装、命令发送、状态显示等功能均运行正常。

Abstract

Background

The time-of-flight (TOF) detector is a key component in the compressed baryonic matter (CBM) experiment at the facility for antiproton and ion research (FAIR). It utilizes super module detectors to achieve high-denseness

high-precision particle flight time measurement. Each super module supports up to 320 channels of high-precision time measurement capabilities

and the data transfer will reach up to 6-Gbit·s

-1

peak rate.

Purpose

This study aims at the quality control of data readout system for CBM-TOF super module.

Methods

First of all

the background and readout methods in similar TOF detectors were introduced. Then a distributed data readout method and related software framework was proposed to meet the quality control readout requirements by using the system on chip (SOC) techniques. Finally

a prototype software was implemented under Linux operating system to test and verify the feasibility of the distributed data readout method.

Results

The read-out board (ROB) prototype module for a single data transmission path achieved approximate 467-Mbit·s

-1

data transfer rate in the case of full-link. Both data acquisition and status monitoring of each component of CBM-TOF were implemented properly in the software.

Conclusion

The distributed data readout method and the related prototype software implementation can be used for quality control of CBM-TOF super module readout.

关键词

Keywords

references

尹春艳. BESⅢ端盖飞行时间读出电子学系统升级设计[D]. 合肥: 中国科学技术大学, 2011.

YIN Chunyan. Design of the upgrading readout electronics system for BESⅢ ETOF[D]. Hefei:University of Science and Technology of China, 2011.

Schambach J, Bridges L, Eppley G, et al . STAR time of flight readout electronics, DAQ, and cosmic ray test stand[C]. IEEE Nuclear Science Symposium Conference Record, San Diego, California, 2006:485-488.

The CBM Collaboration. Technical design report for the CBM, time-of-flight system (TOF)[EB/OL]. 2017-01-30. https://repository.gsi.de/record/109024 https://repository.gsi.de/record/109024 .

The STAR TOF Collaboration. Proposal for a large area time of flight system for STAR[EB/OL]. 2017-01-30. https://www.star.bnl.gov/public/tof/publications/TOF_20040524.pdf https://www.star.bnl.gov/public/tof/publications/TOF_20040524.pdf .

Kluge A, Spegel M. Study of the ALICE time of flight readout system-AFRO[EB/OL]. 2017-01-30. https://cds.cern.ch/record/434208/files/p377.pdf https://cds.cern.ch/record/434208/files/p377.pdf .

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