R&D work on a liquid-xenon photon detector for MEG experiment at PSI

✍ Scribed by S Mihara

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 216 KB
• Volume: 518
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2003.10.020

✦ Synopsis

We are developing a new type of photon detector for an experiment to search for muons decaying into positrons and gamma rays. The detector utilizes liquid xenon as a scintillation material. The scintillation light emitted in liquid xenon is directly observed by photomultipliers (PMTs) located in the liquid without the use of a transmission window. In order to study the detector response, we have constructed a prototype with an active volume of about 70 l surrounded by 228 PMTs. For studying the detector response we conducted electron and gamma beam tests together with detector calibration using alpha sources and cosmic-ray events. In this article we describe preliminary results obtained in these tests.