Evaluation of new 5 inch photomultiplier for use in threshold Cherenkov detectors with aerogel radiator

Author

Wojtsekhowski, B. ; Zorn, C. ; Flyckt, S.O.

Author_Institution

Thomas Jefferson Nat. Accel. Facility, Newport News, PA, USA

Volume

1

fYear

2000

fDate

2000

Firstpage

23193

Abstract

A cost effective alternative to UV-sensitive 5 inch PMTs often used with threshold Aerogel Cherenkov detectors has been developed and tested. The photomultiplier -XP4572-is a variation of the Photonis XP4512 glass window tube with improved electron collection efficiency. Fast timing and high gain were only moderately compromised. The effective quantum efficiency has been measured as twice that of a Burle 8854 Quantacon when exposed to a Cherenkov spectrum generated by Ru-106 electrons (⩽3.54 MeV) through 1 cm of high index, high transparency Matsushita Electric aerogel (n=1.05). This new phototube is being installed in an aerogel-based Cherenkov detector for Hall A at Jefferson Lab

Keywords

Cherenkov counters; aerogels; photomultipliers; 5 inch; Cherenkov spectrum; Matsushita Electric aerogel; Photonis XP4512 glass window tube; aerogel radiator; effective quantum efficiency; electron collection efficiency; photomultiplier; threshold Cherenkov detectors; threshold aerogel Cherenkov detectors; Costs; Detectors; Electric variables measurement; Electron tubes; Glass; Photoelectricity; Photomultipliers; Testing; Timing; Windows;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2000 IEEE

Conference_Location

Lyon

ISSN

1082-3654

Print_ISBN

0-7803-6503-8

Type

conf

DOI

10.1109/NSSMIC.2000.949289

Filename

949289