• Version
• Download 12
• File Size 4.11 MB
• File Count 1
• Create Date July 3, 2018
• Last Updated July 3, 2018

N. Atanov et al., "Quality Assurance on Un-Doped CsI Crystals for the Mu2e Experiment"

Abstract

The Mu2e experiment is constructing a calorimeter consisting of 1,348 undoped CsI crystals in two disks. Each crystal has a dimension of 34 x 34 x 200 mm, and is readout by a large area silicon PMT array. A series of technical specifications was defined according to physics requirements. Preproduction CsI crystals were procured from three firms: Amcrys, Saint-Gobain and Shanghai Institute of Ceramics. We report the quality assurance on crystal's scintillation properties and their radiation hardness against ionization dose and neutrons. With a fast decay time of 30 ns and a light output of more than 100 p.e./MeV measured with a bi-alkali PMT, undoped CsI crystals provide a cost-effective solution for the Mu2e experiment.

Published on the Journal: IEEE TNS 65 (2018) 752 (Published in December 2017)