Optic detectors calibration for measuring ultra-high energy extensive air showers Cherenkov radiation by 532 nm laser

TL;DR

This paper discusses the calibration of photomultiplier tube matrices and atmospheric transparency monitoring using laser probing to improve measurements of Cherenkov radiation from ultra-high energy air showers.

Contribution

It introduces a calibration method for PMT matrices and a laser atmospheric probing station for real-time atmospheric transparency assessment.

Findings

Effective calibration of PMT matrices achieved.

Laser atmospheric probing provides continuous transparency monitoring.

Enhanced accuracy in Cherenkov radiation measurements.

Abstract

Calibration of a PMT matrix is crucial for the treatment of the data obtained with Cherenkov tracking detector. Furthermore, due to high variability of the aerosol abundance in the atmosphere depending on season, weather etc. A constant monitoring of the atmospheric transparency is required during the measurements. For this purpose, besides traditional methods, a station for laser atmospheric probing is used.