Comparison of PMTs from three different manufacturers for the CMS-HF forward calorimeter

Author

Akgun, U. ; Anderson, E.W. ; Ayan, A.S. ; Gülmez, E. ; Miller, M. ; Onel, Y. ; Schmidt, I. ; Winn, D.

Author_Institution

Univ. of Iowa, Iowa City, IA, USA

Volume

51

Issue

4

fYear

2004

Firstpage

1909

Lastpage

1915

Abstract

The builders of the CMS forward hadron calorimeter established a set of specifications for readout PMTs that reflected the physics goals and mechanical needs of the CMS experiment. Three manufacturers, Hamamatsu, Photonis (Philips), and Electron Tubes (EMI), provided candidate PMTs based on these initial requirements. Timing, gain, dark current properties, and single photoelectron spectra of these candidate PMTs were measured. Results show that Hamamatsu PMTs (R7525HA) conform best to the specifications of the Hadron-Forward (HF) Calorimeter.

Keywords

Cherenkov radiation; calorimeters; particle calorimetry; photoelectron spectra; photomultipliers; position sensitive particle detectors; CMS-HF forward hadron calorimeter; Cherenkov light; Electron Tubes PMT; Hamamatsu R7525HA PMT; Philips PMT; Photonis PMT; dark current properties; gain; high-energy physics experiment; photomultiplier tube; single photoelectron spectra; timing; Collision mitigation; Current measurement; Dark current; Electromagnetic interference; Electron tubes; Gain measurement; Hafnium; Manufacturing; Physics; Timing; CMS; CMS Hadron-Forward; Calorimetry; Cherenkov light; HF; PMT; SPES; calorimeter; high-energy physics experiment; photomultiplier tube; single photoelectron spectrum;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2004.832681

Filename

1323238