Performance of a scintillation detector array operated with LHAASO-KM2A electronics
Autor: | Mao-Yuan Liu, C. Hou, Yi-Qing Guo, Tianlu Chen, Hui Cai, Y. Y. Guo, B. Q. Qiao, S. R. Zhang, Xiangdong Sheng, Xue-Yao Zhang, Hongbo Hu, Jia Liu, Quanbu Gou, Cheng Liu, Xiang-Li Qian, Yi Zhang, Zhen Wang, Danzengluobu, Zhen Tian, Youliang Feng, Qun Wang, Q. Gao, Liang Xue, Yuhua Yao, Jinfan Chang, Hai-Jin Li, Labaciren |
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Rok vydání: | 2018 |
Předmět: |
Physics
Physics::Instrumentation and Detectors 010308 nuclear & particles physics business.industry Astrophysics::High Energy Astrophysical Phenomena Detector Astrophysics::Instrumentation and Methods for Astrophysics Astronomy and Astrophysics Cosmic ray Scintillator 01 natural sciences law.invention Telescope Optics Air shower Space and Planetary Science Observatory law 0103 physical sciences business Cosmic-ray observatory 010303 astronomy & astrophysics Cherenkov radiation |
Zdroj: | Experimental Astronomy. 45:363-377 |
ISSN: | 1572-9508 0922-6435 |
Popis: | A scintillation detector array composed of 115 detectors and covering an area of about 20000 m2 was installed at the end of 2016 at the Yangbajing international cosmic ray observatory and has been taking data since then. The array is equipped with electronics from Large High Altitude Air Shower Observatory Square Kilometer Complex Array (LHAASO-KM2A) and, in turn, currently serves as the largest debugging and testing platform for the LHAASO-KM2A. Furthermore, the array was used to study the performance of a wide field-of-view air Cherenkov telescope by providing accurate information on the shower core, direction and energy, etc. This work is mainly dealing with the scintillation detector array. The experimental setup and the offline calibration are described in detail. Then, a thorough comparison between the data and Monte Carlo (MC) simulations is presented and a good agreement is obtained. With the even-odd method, the resolutions of the shower direction and core are measured. Finally, successful observations of the expected Moon’s and Sun’s shadows of cosmic rays (CRs) verify the measured angular resolution. |
Databáze: | OpenAIRE |
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