Precision Crystal Calorimetry in High Energy Physics

TL;DR

This paper reviews the advancements in crystal calorimetry for high energy physics, focusing on improving precision through uniform light response and in situ calibration, and discusses radiation damage mechanisms.

Contribution

It provides a comprehensive overview of recent developments addressing key issues in crystal calorimetry, including damage mechanisms and calibration techniques.

Findings

Understanding of radiation damage causes in different crystal types

Advances in in situ calibration methods

Identification of key factors affecting light response uniformity

Abstract

Crystal Calorimetry is widely used in high energy physics because of its precision. Recent development in crystal technology identified two key issues to reach and maintain crystal precision: light response uniformity and calibration in situ. Crystal radiation damage is understood. While the damage in alkali halides is found to be caused by the oxygen/hydroxyl contamination, it is the structure defects, such as oxygen vacancies, cause damage in oxides.