Performance of a scintillation detector array operated with LHAASO-KM2A electronics

被引：19

作者：

Wang, Zhen ^{[1
,2
]}

Guo, Yiqing ^{[1
]}

Cai, Hui ^{[3
]}

Chang, Jinfan ^{[4
]}

Chen, Tianlu ^{[5
,6
]}

Danzengluobu ^{[6
]}

Feng, Youliang ^{[1
,2
]}

Gao, Qi ^{[6
]}

Gou, Quanbu ^{[1
]}

Guo, Yingying ^{[1
,2
]}

Hou, Chao ^{[1
]}

Hu, Hongbo ^{[1
,2
]}

Labaciren ^{[6
]}

Liu, Cheng ^{[1
]}

Li, Haijin ^{[6
]}

Liu, Jia ^{[1
]}

Liu, Maoyuan ^{[6
]}

Qiao, Bingqiang ^{[7
]}

Qian, Xiangli ^{[8
]}

Sheng, Xiangdong ^{[1
]}

Tian, Zhen ^{[1
,2
]}

Wang, Qun ^{[9
]}

Xue, Liang ^{[10
]}

Yao, Yuhua ^{[11
]}

Zhang, Shaoru ^{[12
]}

Zhang, Xueyao ^{[10
]}

Zhang, Yi ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, Peoples R China

[4] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

[5] Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Hubei, Peoples R China

[6] Tibet Univ, Sci Sch, Phys Dept, Lhasa 850000, Peoples R China

[7] Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210034, Jiangsu, Peoples R China

[8] Shandong Management Univ, Jinan 250100, Shandong, Peoples R China

[9] Nankai Univ, Tianjin 300071, Peoples R China

[10] Shandong Univ, Jinan 250100, Shandong, Peoples R China

[11] Sichuan Univ, Coll Phys Sci & Technol, Chengdu 610064, Sichuan, Peoples R China

[12] Hebei Normal Univ, Coll Phys Sci & Informat Engn, Shijiazhuang 050016, Hebei, Peoples R China

来源：

EXPERIMENTAL ASTRONOMY | 2018年 / 45卷 / 03期

关键词：

Cosmic rays; EAS; Scintillation detector; SIMULATION;

D O I：

10.1007/s10686-018-9588-z

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A scintillation detector array composed of 115 detectors and covering an area of about 20000 m(2) 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.

引用

页码：363 / 377

页数：15

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