PoS - Proceedings of Science
Volume 395 - 37th International Cosmic Ray Conference (ICRC2021) - GAI - Gamma Ray Indirect
The Application of 20 inch MCP-PMT In LHAASO-WCDA
X. You*, B. Gao, M. Chen, H. Li, C. Liu, K. Li  on behalf of the LHAASO Collaboration
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Pre-published on: July 30, 2021
Published on: March 18, 2022
In the Large High Altitude Air Shower Observatory (LHAASO), the main physics objectiveof the Water Cherenkov Detector Array (WCDA) is to survey the gamma-ray sky continuouslyin the energy range from 100 GeV to PeV. The Water Cherenkov detector array, covering an area of about 78,000𝑚$^2$ area, is constituted by 3120 detector units divided into 3 separate arrays. In the second and third array are installed 2220 20" PMTs instead of the 8 PMT usedin the first 150×150𝑚$^2$ array. This type of PMT has large sensitive area, high quantum efficiency (QE), and large peak-to-valley (P/V) ratio for single photoelectron detection.In this work, we will report on the application of 20 inch MCP-PMT.
DOI: https://doi.org/10.22323/1.395.0696
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