On the electromagnetic energy resolution of Cherenkov-fiber calorimeters

Abstract

Electromagnetic calorimeters which sample the Cherenkov radiation of shower particles in optical bers operate in a markedly dierent manner from calorimeters which rely on the dE/dx of shower particles. The well-understood physics of electromagnetic shower development is applied to the case of Cherenkov-ber calorimetry (also known as quartz ber calorimetry) and the results of systematically performed studies are considered in detail to derive an understanding of the critical parameters involved in energy measurement using such calorimeters. A quantitative parameterization of Cherenkov-ber calorimetry electromagnetic energy resolution is proposed and compared with existing experimental results.

The RHIC zero-degree calorimeters

“…Studies of the Cerenkov/fiber sampling technique with electrons [8] and have been reported elsewhere. One device [5] was built and operated in a fixed target experiment.…”