A concise quantum efficiency measurement system for gaseous photomultipliers
Year: 2013
Type: article
Abstract: We have been developing gaseous photomultiplier tubes (PMTs) with a bialkali photocathode combined with micropattern gas detectors (MPGDs). The sensitivity of a PMT is described in terms of its quantum efficiency (QE). The QE is very important in many experiments, particularly when dealing with low photon statistics. A concise QE measurement system has been developed to evaluate the characteristics of a sealed gaseous PMT with a bialkali photocathode. This QE measurement system consists of a Xe arc lamp source, reflective optics and filters, a monochromator, and a reference Si photodiode detector. Using the system, we evaluated the QE, gain, and long-term stability of the gaseous PMT. Here, we report the results of our evaluation.
Authors: Toru Moriya, Fuyuki Tokanai, Keisuke Okazaki, Hirohisa Sakurai, Shuichi Gunji, Hironobu Kawabata, Takayuki Sohtome, Takayuki Sumiyoshi, Hirioyuki Sugiyama, Teruyuki Okada, Noboru Ohishi, Syunji Kishimoto
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,620
OpenAlex ID: W2071760187