| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8179443 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2013 | 8 Pages |
Abstract
A large high-altitude air-shower observatory (LHAASO) is to be built at Shangri-La, Yunnan Province, China. This observatory is intended to conduct sub-TeV gamma astronomy, and as an important component of the LHAASO project, a water Cherenkov detector array (WCDA) is proposed. To investigate engineering issues and fully understand the water Cherenkov technique for detecting air showers, a prototype array at 1% scale of the LHAASO-WCDA has been built at Yang-Ba-Jing, Tibet, China. This paper introduces the prototype array setup and studies its performance by counting rate of each photomultiplier tube (PMT), trigger rates at different PMT multiplicities, and responses to air showers. Finally, the reconstructed shower directions and angular resolutions of the detected showers for the prototype array are given.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Q. An, Y.X. Bai, X.J. Bi, Z. Cao, J.F. Chang, G. Chen, M.J. Chen, S.M. Chen, S.Z. Chen, T.L. Chen, X. Chen, Y.T. Chen, S.W. Cui, B.Z. Dai, Q. Du, Danzengluobu Danzengluobu, C.F. Feng, S.H. Feng, X. Zuo,