Cathode position response of large-area photomultipliers under a magnetic field

NCUIR > Research Center > Center for High Energy and High Field Physics (CHiP) > journal & Dissertation > Item 987654321/104853

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Title:	Cathode position response of large-area photomultipliers under a magnetic field
Authors:	彭仁傑;Koblesky, T.;Roloff, J.;Polly, C.;Peng, J.C.
Contributors:	高能與強場物理研究中心
Keywords:	Cathodes;Collection;Collimation;Detectors;Magnetic fields;Photo-multiplier tubes;Photocathodes;PMT response in magnetic field;Spectrometers;Valleys
Date:	2012-04-01
Issue Date:	2026-04-23 11:59:49 (UTC+8)
Publisher:	Elsevier;Elsevier B.V
Abstract:	摘要： With the increasingly common use of large area PMTs (photomultiplier tubes) for nuclear and particle physics experiments, information on the position dependent magnetic field effects across the PMT's photocathode is important to effectively analyze and understand data collected from PMTs. Using an automated two-dimensional scanner, we have measured the PMT response to an external magnetic field as a function of the cathode position impinged by a collimated light source. This study shows a clear dependence on the cathode position in both collection efficiency and gain of the PMT in the presence of a magnetic field. In particular, a pronounced valley in the collection efficiency is observed for certain locations of the cathode when the magnetic field is transverse to the PMT axis. The pattern of the position dependence is presented for several different magnitudes and orientations of the magnetic field relative to the PMT. 出版者： Elsevier B.V 出版日期： 2012-04-01 出處： Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 2012-04, Vol.670, p.40-44 版權： 2011 Elsevier B.V. 識別號： ISSN: 0168-9002 識別號： EISSN: 1872-9576 識別號： DOI: 10.1016/j.nima.2011.12.054
Appears in Collections:	[Center for High Energy and High Field Physics (CHiP)] journal & Dissertation

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