2025-05-01 NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 2025 1074(卷), null(期), (null页)
MACE (Major atmospheric Cherenkov experiment) is an imaging atmospheric Cherenkov telescope situated at an altitude of 4270 m above sea level in the Himalayan desert region at Hanle, India. It deploys a large light collector of 21 m diameter and an imaging camera with 0.125 degrees pixel resolution at the focal plane. The imaging camera has been designed as a modular structure comprising of 68 camera integrated modules (CIMs). Each CIM contains 16 photomultiplier tubes (PMTs) along with associated electronics and a data acquisition system. In this study, we evaluated the performance of 74 CIMs using an in-house developed test setup and data analysis software. Long-term monitoring of various system health parameters, based on telemetry and event data, indicates steady and consistent performance of CIMs in the camera.