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arXiv · 2211.10951

Simulation of the Signal Propagation for Thin-gap RPC in the ATLAS Phase-II Upgrade

Zirui Liu·Xiangyu Xie·Pingxin Zhang·Chunhao Tian·Yongjie Sun
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Abstract

Thin-gap Resistive Plate Chambers (RPCs) with a 1 mm gap size are introduced in the Phase-II ATLAS upgrade. Smaller avalanche charge due to the reduced gap size raises concerns for signal integrity. This work focuses on the RPC signal propagation process in lossless conditions, and an analytical study is implemented for the ATLAS RPC. Detector modeling is presented, and the simulation of the RPC signal is discussed in detail. Simulated characteristic impedance and crosstalk have been compared with the measured value to validate this model. This method is applied to different RPC design geometries, including the newly proposed $\eta-\eta$ readout scheme.

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Zirui Liu, Xiangyu Xie, Pingxin Zhang, Chunhao Tian, Yongjie Sun. 2022-11-20. Simulation of the Signal Propagation for Thin-gap RPC in the ATLAS Phase-II Upgrade. https://doi.org/10.1016/j.nima.2023.168270

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