학술논문
A Photomultiplier With an AlGaN Photocathode and Microchannel Plates for BaF2 Scintillator Detectors in Particle Physics.
Document Type
Article
Author
Source
Subject
*PARTICLE detectors
*PARTICLE physics
*MICROCHANNEL plates
*SCINTILLATORS
*SCINTILLATION counters
*ALUMINUM gallium nitride
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Language
ISSN
0018-9499
Abstract
Barium fluoride (BaF2) crystals are considered as a candidate scintillator for scintillation detectors in high-energy physics because of high radiation hardness and short decay time (< 1 ns) of the fast emission component. However, the high level of the slow emission component can deteriorate the detector time resolution. Special approaches are required to decrease this slow component. Using solar-blind photodetectors is one of the possible solutions. In this article, we describe a solar-blind photomultiplier with microchannel plates (MCP) that uses an aluminum gallium nitride (AlGaN) photocathode and a complete scintillation detector channel with a BaF2 crystal and the photomultiplier. The results of the cosmic-ray tests are presented that show the efficiency of detection of the BaF2 fast emission component and suppression of the slow one in the proposed scintillation detector. [ABSTRACT FROM AUTHOR]