CMS Hadronic EndCap Calorimeter Upgrade Studies for SLHC “Čerenkov Light Collection From Quartz Plates”

Author

Duru, F. ; Akgun, U. ; Albayrak, E.A. ; Ayan, A.S. ; Bruecken, P. ; Norbeck, E. ; Olson, J. ; Onel, Y. ; Winn, D. ; Cremaldi, L.

Author_Institution

Univ. of Iowa, Iowa City, IA

Volume

55

Issue

2

fYear

2008

fDate

4/1/2008 12:00:00 AM

Firstpage

734

Lastpage

740

Abstract

Due to an expected increase in radiation damage under super-LHC conditions, we propose to substitute the scintillator tiles in the original design of the hadronic endcap (HE) calorimeter with quartz plates. Quartz is shown to be radiation hard. Using wavelength shifting fibers, it is possible to collect efficiently the Cerenkov light generated in quartz plates. This paper summarizes the results from various test beams, bench tests, and Geant4 simulations done on methods of collecting light from quartz plates, as well as radiation hardness tests on quartz material.

Keywords

Cherenkov counters; particle calorimetry; radiation hardening; CMS hadronic endcap calorimeter upgrade; Cerenkov light collection; Geant4 simulations; quartz plates; radiation damage; radiation hardness tests; super-LHC conditions; wavelength shifting fibers; Collision mitigation; Geometry; Large Hadron Collider; Materials testing; Optical fiber testing; Radiation detectors; Solid scintillation detectors; Čerenkov detectors; Čerenkov radiation; quartz;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2008.918524

Filename

4484228