Published July 11, 2005 | Version v1
Journal article

A hadron blind detector for the PHENIX experiment at RHIC

  • 1. Weizmann Institute of Science, Rehovot 76100 (Israel)
  • 2. Brookhaven National Laboratory, Upton, NY 11973-5000 (United States)
  • 3. KEK, Tsukuba-shi, Ibaraki-ken 305-0801 (Japan)
  • 4. RIKEN, Wako, Saitama 351-0198 (Japan)
  • 5. Stony Brook University, SUNY, Stony Brook, NY 11794-3400 (United States)
  • 6. University of Tokyo, Tokyo 113-0033 (Japan)
  • 7. Waseda University, Tokyo 162-0044 (Japan)

Description

A Hadron Blind Detector (HBD) is being developed for the PHENIX experiment at RHIC. It consists of a Cherenkov radiator operated with pure CF4 directly coupled in a windowless configuration to a triple-GEM detector element with a CsI photocathode and pad readout. The HBD operates in the bandwidth 6-11.5eV (110-200nm). We studied the detector response to minimum ionizing particles and to electrons. We present measurements of the CsI quantum efficiency, which are in very good agreement with previously published results over the bandwidth 6-8.3eV and extend them up to 10.3eV. Discharge probability and aging studies of the GEMs and the CsI photocathode in pure CF4 are presented

Additional details

Identifiers

DOI
10.1016/j.nima.2005.02.039;
arXiv
arXiv:physics/0502008v1;
PII
S0168-9002(05)00848-X;

Publishing Information

Journal Title
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Journal Volume
546
Journal Issue
3
Journal Page Range
p. 466-480
ISSN
0168-9002
CODEN
NIMAER

Optional Information

Copyright
Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.