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Volume 358 - 36th International Cosmic Ray Conference (ICRC2019) - CRI - Cosmic Ray Indirect
Characterization of the photomultiplier tube for the LHAASO electromagnetic particle detectors
Y. Yu,* H. Lv, D. Liu, X. Sheng, C. Feng
*corresponding author
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Pre-published on: 2019 July 22
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Over 5000 XP3960 type photomultiplier tubes (PMTs) are being deployed for electromagnetic particle detectors (EDs) of LHAASO (Large High Altitude Air Shower Observatory) project. To meet the large dynamic range requirement (4 orders of magnitude), an optimal design of the voltage divider with anode and the 6$^{th}$ dynode readout for this type of PMT is designed. Using this divider, the characteristics of the output waveforms and cross-talk effect between the two outputs are studied. Hundreds PMTs have been tested at the PMT test bench. The statistical results such as the single photoelectron (SPE) response relative transit time and pulse linearity are presented in this paper.
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