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Reconstruction of Cherenkov image bymultiple telescopes of LHAASO-WFCTA

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Aharonian F ^1,2 An Q ^3,4 Axikegu ⁵ Bai L X ⁶ Bai Y X ^7,8 Bao Y W ⁹ Bastieri D ¹⁰ Bi X J ^7,11,8 Bi Y J ^7,8 Cai J T ¹⁰ Cao Zhe ^3,4 Cao Zhen ^7,11,8 Chang J ¹² Chang J F ^7,8,3 Chen E S ^7,11,8 Chen Liang ^7,11,8 Chen Liang ¹³ Chen Long ⁵ Chen M J ^7,8 Chen M L ^7,8,3 Chen Q H ⁵ Chen S H ^7,11,8 Chen S Z ^7,8 Chen T L ¹⁴ Chen Y ⁹ Cheng H L ^11,14,15 Cheng N ^7,8 Cheng Y D ^7,8 Cui S W ¹⁶ Cui X H ¹⁵ Cui Y D ^7,17,18 D'ettorre Piazzoli B ¹⁹ Dai B Z ²⁰ Dai H L ^7,8,3 Dai Z G ⁴ Danzengluobu ¹⁴ Della Volpe D ²¹ Duan K K ²² Fan J H ¹⁰ Fan Y Z ²² Fan Z X ^7,8 Fang J ²⁰ Fang K ^7,8 Feng C F ²³ Feng L ²² Feng S H ^7,8 Feng X T ²³ Feng Y L ¹⁴ Gao B ^7,8 Gao C D ²³ Gao L Q ^7,11,8 Gao Q ¹⁴ Gao W ^7,8 Gao W K ^7,11,8 Ge M M ²⁰ Geng L S ^7,8 Gong G H ²⁴ Gou Q B ^7,8 Gu M H ^7,8,3 Guo F L ¹³ Guo J G ^7,11,8 Guo X L ⁵ Guo Y Q ^7,8 Guo Y Y ²² Han Y A ²⁵ He H H ^7,11,8 He H N ²² He S L ¹⁰ He X B ^17,18 He Y ⁵ Heller M ²¹ Hor Y K ^17,18 Hou C ^7,8 Hou X ²⁶ Hu H B ^7,11,8 Hu Q ^4,22 Hu S ⁶ Hu S C ^7,11,8 Hu X J ²⁴ Huang D H ⁵ Huang W H ²³ Huang X T ²³ Huang X Y ²² Huang Y ^7,11,8 Huang Z C ⁵ Ji X L ^7,8,3 Jia H Y ⁵ Jia K ²³ Jiang K ^3,4 Jiang Z J ²⁰ Jin M ^7,8 Kang M M ⁶ Ke T ^7,8 Kuleshov D ²⁷ Levochkin K ²⁷ Li B B ¹⁶ Li Cheng ^3,4 Li Cong ^7,8 Li F ^7,8,3 Li H B ^7,8 Li H C ^7,8 Li H Y ^4,22 Li J ^4,22 Li Jian ⁴ Li Jie ^7,8,3 Li K ^7,8 Li W L ²³ Li X R ^7,8 Li Xin ^3,4 Li Xin ⁵ Li Y Z ^7,11,8 Li Zhe ^7,8 Li Zhuo ²⁸ Liang E W ²⁹ Liang Y F ²⁹ Lin S J ^17,18 Liu B ⁴ Liu C ^7,8 Liu D ²³ Liu H ⁵ Liu H D ²⁵ Liu J ^7,8 Liu J L ³⁰ Liu J S ^17,18 Liu J Y ^7,8 Liu M Y ¹⁴ Liu R Y ⁹

文摘	Introduction One of main scientific goals of the Large High Altitude Air Shower Observatory (LHAASO) is to accurately measure the energy spectra of different cosmic ray compositions around the 'knee' region. The Wide Field-of-View (FoV) Cherenkov Telescope Array (WFCTA), which is one of the main detectors of LHAASO and has 18 telescopes, is built to achieve this goal. Multiple telescopes are put together and point to connected directions for a larger FoV. Method Telescopes are deployed spatially as close as possible, but due to their own size, the distance between two adjacent telescopes is about 10 m. Therefore, the Cherenkov lateral distribution and the parallax between the two telescopes should be considered in the event building process for images crossing over the boundaries of FoVs of the telescopes. An event building method for Cherenkov images measured by multiple telescopes of WFCTA is developed. The performance of the shower measurements using the combined images is evaluated by comparing with showers that are fully contained by a virtual telescope in simulation. Results and conclusion It is proved that the developed event building process can help to increase the FoV of WFCTA by 30% while maintaining the same reconstruction quality, compared to the separate telescope reconstruction method.
来源	Radiation Detection Technology and Methods ,2022,6(4):544-557 【核心库】
DOI	10.1007/s41605-022-00342-4
地址	1. Dublin Institute for Advanced Studies, Ireland, Dublin 2. Max-Planck-Institut for Nuclear Physics, Germany, Heidelberg, 69029 3. State Key Laboratory of Particle Detection and Electronics, State Key Laboratory of Particle Detection and Electronics, Beijing 4. University of Science and Technology of China, Anhui, Hefei, 230026 5. School of Physical Science and Technology & School of Information Science and Technology, Southwest Jiaotong University, Sichuan, Chengdu, 610031 6. College of Physics, Sichuan University, Sichuan, Chengdu, 610065 7. Institute of High Energy Physics, Chinese Academy of Sciences, Key Laboratory of Particle Astrophyics & Experimental Physics Division & Computing Center, Chinese Academy of Sciences, Beijing, 100049 8. TIANFU Cosmic Ray Research Center, Sichuan, Chengdu 9. School of Astronomy and Space Science, Nanjing University, Jiangsu, Nanjing, 210023 10. Center for Astrophysics, Guangzhou University, Guangdong, Guangzhou, 510006 11. University of Chinese Academy of Sciences, Beijing, 100049 12. Purple Mountain Observatory, Chinese Academy of Sciences, Key Laboratory of Dark Matter and Space Astronomy,Chinese Academy of Sciences;;Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Jiangsu, Nanjing, 210023 13. Shanghai Astronomical Observatory, Chinese Academy of Sciences, Key Laboratory for Research in Galaxies and Cosmology, Chinese Academy of Sciences, Shanghai, 200030 14. Tibet University, Key Laboratory of Cosmic Rays, Ministry of Education, Tibet, Lhasa, 850000 15. National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100101 16. Hebei Normal University, Hebei, Shijiazhuang, 050024 17. School of Physics and Astronomy (Zhuhai) & Sino-French Institute of Nuclear Engineering and Technology (Zhuhai), Sun Yat-sen University, Zhuhai, 519000 18. School of Physics (Guangzhou), Sun Yat-sen University, Guangdong, Guangzhou, 510275 19. Dipartimento di Fisica dell'Universita di Napoli "Federico II", Complesso Universitario di Monte Sant'Angelo, via Cinthia, Italy, Napoli, 80126 20. School of Physics and Astronomy, Yunnan University, Yunnan, Kunming, 650091 21. Departement de Physique Nucleaire et Corpusculaire, Faculte de Sciences, Universite de Geneve, Switzerland, Geneva, 1211 22. Purple Mountain Observatory, Chinese Academy of Sciences, Key Laboratory of Dark Matter and Space Astronomy, Chinese Academy of Sciences;;Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Jiangsu, Nanjing, 210023 23. Institute of Frontier and Interdisciplinary Science, Shandong University, Shandong, Qingdao, 266237 24. Department of Engineering Physics, Tsinghua University, Beijing, 100084 25. School of Physics and Microelectronics, Zhengzhou University, He'nan, Zhengzhou, 450001 26. Yunnan Observatories, Chinese Academy of Sciences, Yunnan, Kunming, 650216 27. Institute for Nuclear Research of Russian Academy of Sciences, Russia, Moscow, 117312 28. School of Physics, Peking University, Beijing, 100871 29. School of Physical Science and Technology, Guangxi University, Guangxi, Nanning, 530004 30. Tsung-Dao Lee Institute & School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240
语种	英文
文献类型	研究性论文
ISSN	2509-9930
学科	原子能技术
基金	supported by the National Key R&D program of China ; 国家自然科学基金 ; 国家自然科学基金 ; by IHEP innovation project ; by the Science and Technology Department of Sichuan Province ; by the Xiejialin Foundation of IHEP ; by Thailand Science Research and Innovation in Thailand.
文献收藏号	CSCD:7366836

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引证文献 2 篇

1 Wang Yang The broadband laser source and an active beam stabilization device for laser calibration systems Radiation Detection Technology and Methods,2023,7(3):364-371
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2 解磊 LHAASO-WFCTA激光能量测量系统的性能研究天文研究与技术,2023,20(6):576-582
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