Light Monitoring System for the Lead Tungstate Calorimeter in Hall D at Jefferson Lab

TL;DR

This paper details the design, implementation, and successful operation of a light monitoring system for a lead tungstate calorimeter used in the GlueX detector at Jefferson Lab, enhancing detector performance monitoring.

Contribution

It introduces a novel light monitoring system integrated with the GlueX calorimeter, demonstrating its effective operation during detector commissioning and data collection.

Findings

The light monitoring system was successfully integrated into the GlueX detector.

It operated reliably during detector commissioning and data collection.

The system's design improved the calibration and stability monitoring of the calorimeter.

Abstract

A new electromagnetic calorimeter composed of 1596 lead tungstate (PbWO$_4$) scintillating crystals has been constructed for the GlueX detector in Hall D at Jefferson Lab. The calorimeter is equipped with a light monitoring system that uses light-emitting diodes. The light monitoring system was fabricated, installed, and integrated into the GlueX trigger system. It was successfully operated during detector commissioning and data collection. The paper describes the design, installation, and performance of the light monitoring system.