PoS - Proceedings of Science
Volume 444 - 38th International Cosmic Ray Conference (ICRC2023) - Cosmic-Ray Physics (Direct, CRD)
The voltage optimization of fast-timing MCP-PMT
S. Qian
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Pre-published on: September 25, 2023
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The microchannel plate (MCP) is used as the electron multiplier of the photomultiplier tube (PMT) for its excellent time performance. Researchers at IHEP have conceived a newtype of 2-inch square shape 8 X 8 anodes Fast MCP-PMT (FPMT) with fast timing resolution for particle identification in the next generation of high-energy physics experiments and medical imaging equipment. Three samples of this FPMT were tested under different voltage between the photoncathode and the MCP. The time resolution of the FPMT shows little influence with the change of the voltage, and the FPMT can reach a best transit time spread (TTS) of 30.7 ps on average in single photoelectron (SPE) mode.
DOI: https://doi.org/10.22323/1.444.0047
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