R&D of the CEPC scintillator-tungsten ECAL
R&D of the CEPC scintillator-tungsten ECAL
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DOI：
10.1088/1748-0221/13/03/c03024
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发表时间：
2018-03
影响因子：
1.3
通讯作者：
M. Dong
中科院分区：
文献类型：
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作者：
M. Dong
圆形电子和正电子对撞机（CEPC）被提议作为未来的希格斯工厂。为了满足物理要求，考虑了一种面向粒子流算法的高能量分辨率和精确重构的量热系统。由于具有良好的性能和相对较低的成本，选择了具有闪烁体-钨夹层结构的取样量热器作为电磁量热器（ECAL）的选择之一。介绍了硅光电倍增管（SiPM）读出闪烁体模块的设计、测试和优化，包括电子学的设计和开发。为了评估闪烁体和SiPM模块对不同能量粒子的性能，在高能物理研究所（IHEP）的E3束流上对没有钨簇射材料的小型探测器原型进行了束流测试。结果与预期一致。这些研究为CEPC的粒子流电磁量能器的研制提供了参考和促进。
The circular electron and positron collider (CEPC) was proposed as a future Higgs factory. To meet the physics requirements, a particle flow algorithm-oriented calorimeter system with high energy resolution and precise reconstruction is considered. A sampling calorimeter with scintillator-tungsten sandwich structure is selected as one of the electromagnetic calorimeter (ECAL) options due to its good performance and relatively low cost. We present the design, the test and the optimization of the scintillator module read out by silicon photomultiplier (SiPM), including the design and the development of the electronics. To estimate the performance of the scintillator and SiPM module for particles with different energy, the beam test of a mini detector prototype without tungsten shower material was performed at the E3 beams in Institute of High Energy Physics (IHEP). The results are consistent with the expectation. These studies provide a reference and promote the development of particle flow electromagnetic calorimeter for the CEPC.