A Hadron Blind Detector for the PHENIX Experiment at RHIC
Instrumentation and Detectors
2008-11-26 v1
Abstract
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 6-11.5 eV(110-200 nm). 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 6-8.3 eV and extend them up to 10.3 eV. Discharge probability andaging studies of the GEMs and the CsI photocathode in pure CF4 are presented.
Cite
@article{arxiv.physics/0502008,
title = {A Hadron Blind Detector for the PHENIX Experiment at RHIC},
author = {Z. Fraenkel and A. Kozlov and M. Naglis and I. Ravinovich and L. Shekhtman and I. Tserruya and B. Azmoun and C. Woody and S. Sawada and S. Yokkaichi and A. Milov and T. Gunji and H. Hamagaki and M. Inuzuka and T. Isobe and Y. Morino and S. X. Oda and K. Ozawa and S. Saito and T. Sakaguchi and Y. Yamaguchi},
journal= {arXiv preprint arXiv:physics/0502008},
year = {2008}
}
Comments
18 pages, 10 figures, submitted for publication in NIM