Beam test result of the sealed MRPC prototype for CEE-eTOF

IF 1.3 4区工程技术 Q3 INSTRUMENTS & INSTRUMENTATION

Journal of Instrumentation Pub Date : 2023-11-01 DOI:10.1088/1748-0221/18/11/c11001

Botan Wang, Haoqian Xu, Kai Sun, Daming Liu, Dong Han, Yi Wang, Lei Zhao, Baohong Guo, Hexiang Wang, Shiya Huang

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Abstract

Abstract We report the beam test and result of the sealed Multigap Resistive Plate Chambers (MRPC) for the external Time of Flight (eTOF) wall of the Cooler-strorage-ring External-target Experiment (CEE). The test stand detects the secondary charged particles produced from heavy ion collisions in the Heavy Ion Research Facility in Lanzhou (HIRFL), and it serves as a joint evaluation of the future CEE system, including the detectors, readout electronics, data acquisition, trigger system, etc. The collision is achieved by a Fe beam and a Fe target, with an estimated beam energy of 300 MeV/u. The sealed MRPC prototypes work stably during the test with a 20 sccm low gas flow. The whole test system is triggered from the channel multiplicity provided by the TOF detectors. A tracking method is implemented to the analysis in order to resolve the events with multiple tracks on the detectors. The result shows that the detectors reach 98% efficiency at their working point. With proper corrections, the time resolution is evaluated to be 60 ps, which fulfills the requirement to the eTOF wall.

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CEE-eTOF密封MRPC原型梁试验结果

摘要本文报道了冷库环外靶实验(CEE)外飞行时间(eTOF)壁密封多间隙电阻板室(MRPC)的梁试验和结果。该试验台检测兰州重离子研究设施(HIRFL)重离子碰撞产生的二次带电粒子，并作为未来CEE系统的联合评估，包括探测器、读数电子、数据采集、触发系统等。碰撞是由一个Fe束和一个Fe靶实现的，估计束能量为300 MeV/u。密封的MRPC原型在20 sccm的低气体流量测试中稳定工作。整个测试系统由TOF探测器提供的通道多重性触发。为了解决探测器上具有多个轨迹的事件，在分析中实现了一种跟踪方法。结果表明，探测器在其工作点的效率可达98%。经过适当的校正，时间分辨率评估为60ps，满足eTOF壁的要求。

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来源期刊

Journal of Instrumentation 工程技术-仪器仪表

CiteScore

2.40

自引率

15.40%

发文量

827

审稿时长

7.5 months

期刊介绍： Journal of Instrumentation (JINST) covers major areas related to concepts and instrumentation in detector physics, accelerator science and associated experimental methods and techniques, theory, modelling and simulations. The main subject areas include. -Accelerators: concepts, modelling, simulations and sources- Instrumentation and hardware for accelerators: particles, synchrotron radiation, neutrons- Detector physics: concepts, processes, methods, modelling and simulations- Detectors, apparatus and methods for particle, astroparticle, nuclear, atomic, and molecular physics- Instrumentation and methods for plasma research- Methods and apparatus for astronomy and astrophysics- Detectors, methods and apparatus for biomedical applications, life sciences and material research- Instrumentation and techniques for medical imaging, diagnostics and therapy- Instrumentation and techniques for dosimetry, monitoring and radiation damage- Detectors, instrumentation and methods for non-destructive tests (NDT)- Detector readout concepts, electronics and data acquisition methods- Algorithms, software and data reduction methods- Materials and associated technologies, etc.- Engineering and technical issues. JINST also includes a section dedicated to technical reports and instrumentation theses.