Ultrafast Inorganic Crystals with Mass Production Capability for Future High-Rate Experiments

TL;DR

This paper discusses the development of ultrafast inorganic scintillators with rapid response and radiation tolerance, suitable for future high-rate high-energy physics experiments, emphasizing mass production and comparison with existing crystals.

Contribution

It introduces new ultrafast inorganic scintillators like LYSO:Ce, BaF2, and BaF2:Y with mass production potential, advancing detector technology for high-rate experiments.

Findings

BaF2:Y crystals show promising radiation hardness.

Performance of new crystals exceeds traditional CsI in timing.

Development efforts for BaF2:Y are ongoing.

Abstract

Future HEP experiments present stringent challenges to inorganic scintillators in both fast timing response and radiation tolerance. This paper reports recent progress in developing ultrafast inorganic scintillators with sub-ns decay time for future precision timing detectors and high-rate experiments. Performance of fast and ultrafast crystals with mass production capability are compared to CsI crystals which are used for the Mu2e calorimeter. Examples are LYSO:Ce, BaF2 and BaF2:Y, which are considered for Mu2e-II. Crystal radiation hardness against gamma-rays and hadrons is reported. Current status and development effort for the BaF2:Y crystals are discussed.