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The Application of 20 inch MCP-PMT In LHAASO-WCDA

  • the LHAASO Collaboration
  • CAS - Institute of High Energy Physics
  • TIANFU Cosmic Ray Research Center
  • University of Chinese Academy of Sciences
  • Dublin Institute for Advanced Studies
  • Max Planck Institute for Nuclear Physics
  • University of Science and Technology of China
  • University of Science and Technology of China
  • Southwest Jiaotong University
  • Sichuan University
  • Nanjing University
  • Guangzhou University
  • Wuhan University
  • CAS - Purple Mountain Observatory
  • Hebei Normal University
  • CAS - Shanghai Astronomical Observatory
  • Tibet University
  • CAS - National Astronomical Observatories
  • Sun Yat-Sen University
  • University of Naples Federico II
  • Yunnan University
  • University of Geneva
  • Shandong University
  • Tsinghua University
  • Zhengzhou University
  • Institute for Nuclear Research of the Russian Academy of Sciences
  • Peking University
  • Guangxi University
  • Shanghai Jiao Tong University
  • Mahidol University
  • Moscow Institute of Physics and Technology
  • CAS - National Space Science Center

Research output: Contribution to journalConference articlepeer-review

Abstract

In the Large High Altitude Air Shower Observatory (LHAASO), the main physics objective of the Water Cherenkov Detector Array (WCDA) is to survey the gamma-ray sky continuously in the energy range from 100 GeV to PeV. The Water Cherenkov detector array, covering an area of about 78,000 m2 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 used in the first 150 × 150m2 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 at LHAASO-WCDA.

Original languageEnglish
Article number696
JournalProceedings of Science
Volume395
StatePublished - 18 Mar 2022
Externally publishedYes
Event37th International Cosmic Ray Conference, ICRC 2021 - Virtual, Berlin, Germany
Duration: 12 Jul 202123 Jul 2021

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