中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Reconstruction of Cherenkov image by multiple telescopes of LHAASO-WFCTA

文献类型:期刊论文

AuthorAharonian, F.15,29; An, Q.25,26; Axikegu27; Bai, L. X.28; Bai, Y. X.16,18; Bao, Y. W.30; Bastieri, D.11; Bi, X. J.16,17,18; Bi, Y. J.16,18; Cai, J. T.11
SourceRADIATION DETECTION TECHNOLOGY AND METHODS
Issued Date2022-09
Volume6Issue:4Pages:544-557
ISSN2509-9930
DOI10.1007/s41605-022-00342-4
Rank第25完成单位
SubtypeArticle
English Abstract

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.

Subject物理学 ; 高能物理学 ; 天文学 ; 天体物理学 ; 高能天体物理学
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Publish Place#04-01 CENCON I, 1 TANNERY RD, SINGAPORE 347719, SINGAPORE
Funding ProjectNational Key R&D program of China ; National Natural Science Foundation of China ; NSFC ; IHEP innovation project ; Science and Technology Department of Sichuan Province ; Xiejialin Foundation of IHEP ; Thailand Science Research and Innovation in Thailand
WOS Research AreaNuclear Science & Technology
Language英语
CSCD IDCSCD:7366836
PublisherSPRINGER SINGAPORE PTE LTD
Funding OrganizationNational Key R&D program of China ; National Natural Science Foundation of China ; NSFC ; IHEP innovation project ; Science and Technology Department of Sichuan Province ; Xiejialin Foundation of IHEP ; Thailand Science Research and Innovation in Thailand