Performance of a scintillation detector array operated with LHAASO-KM2A electronics |
| |
| Authors: | Zhen Wang Yiqing Guo Hui Cai Jinfan Chang Tianlu Chen Danzengluobu Youliang Feng Qi Gao Quanbu Gou Yingying Guo Chao Hou Hongbo Hu Labaciren Cheng Liu Haijin Li Jia Liu Maoyuan Liu Bingqiang Qiao Xiangli Qian Xiangdong Sheng Zhen Tian Qun Wang Liang Xue Yuhua Yao Shaoru Zhang Xueyao Zhang Yi Zhang |
| |
| Affiliation: | 1.Key Laboratory of Particle Astrophysics, Institute of High Energy Physics,Chinese Academy of Sciences,Beijing,China;2.University of Chinese Academy of Sciences,Beijing,China;3.School of Nuclear Science and Technology,Lanzhou University,Lanzhou,China;4.Institute of High Energy Physics,Chinese Academy of Sciences,Beijing,China;5.School of Physics and Technology,Wuhan University,Wuhan,China;6.Physics Department of Science School,Tibet University,Lhasa,China;7.Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory,Chinese Academy of Sciences,Nanjing,China;8.Shandong Management University,Jinan,China;9.Nankai University,Tianjin,China;10.Shandong University,Jinan,China;11.College of Physical Science and Technology,Sichuan University,Chengdu,China;12.College of Physics Science and Information Engineering,Hebei Normal University,Shijiazhuang,China |
| |
| Abstract: | 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. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
