Abstract
Purpose: The main scientific goal of LHAASO-WCDA is to survey gamma-ray sources with energy from 100 GeV to 30 TeV. To observe high-energy shower events, especially to measure the energy spectrum of cosmic rays from 100 TeV to 10 PeV, a dynamic range extension system (WCDA++) is designed to use a 1.5-inch PMT with a dynamic range of four orders of magnitude for each cell in WCDA-1. Method: The dynamic range is extended by using these PMTs to measure the effective charge density in the core region of air shower events, which is an important parameter for identifying the composition of primary particles. Result and Conclusion: The system has been running for more than one year. In this paper, the details of the design and performance of WCDA++ are presented.
Recommended Citation
"A Dynamic Range Extension System For LHAASO WCDA-1," Radiation Detection Technology and Methods, vol. 5, no. 4, pp. 520 - 530, Springer, Dec 2021.
The definitive version is available at https://doi.org/10.1007/s41605-021-00275-4
Department(s)
Physics
Keywords and Phrases
LHAASO–WCDA; Performance; Water Cherenkov detector; WCDA++
International Standard Serial Number (ISSN)
2509-9949; 2509-9930
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2025 Springer, All rights reserved.
Publication Date
01 Dec 2021

Comments
National Natural Science Foundation of China, Grant 2019ZYZF0001