Regular Article - Experimental Physics
The external time-of-flight wall for CEE experiment
Key Laboratory of Particle and Radiation Imaging, Department of Engineering Physics, Tsinghua University, 100084, Beijing, China
2 State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, 230026, Hefei, China
Accepted: 3 July 2023
Published online: 13 September 2023
A heavy-ion collision facility called the cooler storage ring (CSR) external-target experiment (CEE) is scheduled in Lanzhou, China. The time measurement of the charged particles at the forward angle will be conducted by the external time-of-flight (eTOF) subsystem, which is built with multigap resistive plate chambers (MRPC). This work describes the tasks, performance criteria, detector layout, and prototype test results while outlining the technical design and development status of the CEE-eTOF wall. The effectiveness of the wall design has been validated using a FairRoot-based simulation, which is an essential part of the verification. With a coverage, a 60 ps overall time resolution, and a 2.6 m distance from the collision point, the eTOF wall enables the particle identification, system triggering, and event selection in cooperation with other related detectors. A novel structure called sealed MRPC will be applied to the subsystem. The design considerations of this type, prototype test, and results are also described in this paper.
© The Author(s) 2023
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