Journal Article

FZJ-2020-01784

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Performance of a Position Sensitive Neutron Scintillation Detector based on Silicon Photomultipliers

Kumar, S. (Corresponding author)FZJ* ; Herzkamp, M.FZJ* ; Degenhardt, C.FZJ* ; Seemann, J.FZJ* ; Vezhlev, E.FZJ* ; Van Waasen, S.

2020
IEEE New York, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/26238  doi:10.1109/TNS.2020.2988474

Abstract: In recent years, the price increase of 3He has triggered the search for alternative neutron detectors. One of the viable options is a scintillation based neutron detector. Usually, Photomultiplier tubes (PMTs) are used in these detectors for photodetection. However, the increase in performance requirements such as the operability in magnetic field and spatial resolution, necessitates an advanced neutron detector. Therefore, we developed a detector prototype with an active area of 13 cm x 13 cm using Silicon photomultipliers (SiPM). As compared to PMTs, SiPMs offer more compactness, more robustness and a lower sensitivity to magnetic fields. The final detector is aimed to be used in the future at the TREFF instrument of the Heinz Maier-Leibnitz Zentrum (MLZ) in Garching, Germany for neutron reflectometry (NR). First measurements were carried out at TREFF and at the dedicated detector test instrument V17 at BER-II of HZB in Berlin, Germany. In this work, we report the results for detection efficiency, gamma discrimination, two-dimensional position resolution, count rate, and detection linearity.

Keyword(s): Instrument and Method Development (1st) ; Instrument and Method Development (2nd)

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Contributing Institute(s):

1. Zentralinstitut für Elektronik (ZEA-2)
2. JCNS-FRM-II (JCNS-FRM-II)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

Experiment(s):

1. TREFF: Neutronenreflektometer (NL5S)

Appears in the scientific report 2020

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