PoS - Proceedings of Science
Volume 444 - 38th International Cosmic Ray Conference (ICRC2023) - Gamma-ray Astronomy (GA)
The charge response study of large spherical PMTs
B. Gao
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Pre-published on: August 17, 2023
Published on:
The charge response of the detector is very important for data reconstruction and energy spectrum analysis. In this paper, the charge response of LHAASO large size PMT is studied in depth,
including the difference in detection efficiency between MCP and Dynode structure PMTs, and a calibration charge nonlinear method based on continuous optical attenuator is proposed. After the correction from charge calibration, the experimental data can reach a good agreement with the
simulation results.
DOI: https://doi.org/10.22323/1.444.0801
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