# Study on single-channel signals of water Cherenkov detector array for the LHAASO

## TL;DR

This paper evaluates the single-channel signals of the water Cherenkov detector array for LHAASO using detailed Monte Carlo simulations, providing insights into detector performance and engineering issues.

## Contribution

It presents a comprehensive simulation study of single-channel signals for the LHAASO WCDA, aiding in understanding detector behavior and engineering challenges.

## Key findings

- Rate and charge distribution characterized
- Simulation results compared with prototype data
- Insights into detector performance and engineering issues

## Abstract

The Large High Altitude Air Shower Observatory (LHAASO) is planned to be built at Daocheng, Sichuan Province, China. The water Cherenkov detector array (WCDA), with an area of 78,000 m2 and capacity of 350,000 tons of purified water, is one of the major components of the LHAASO project. A 9-cell detector prototype array has been built at the Yangbajing site, Tibet, China to comprehensively understand the water Cherenkov technique and investigate the engineering issues of WCDA. In this paper, the rate and charge distribution of single-channel signals are evaluated using a full detail Monte Carlo simulation. The results are discussed and compared with the prototype array.