Contribution to a conference proceedings

FZJ-2019-06594

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png SiPM-based neutron detector design: validation of Geant4 simulations

Kumar, S. (Corresponding author)FZJ* ; Herzkamp, M.FZJ* ; van Waasen, S.FZJ* ; Burger, A. (Editor) ; James, R. B. (Editor) ; Payne, S. A. (Editor)

2019
SPIE

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Please use a persistent id in citations: doi:10.1117/12.2526879

Abstract: The demand for an alternative to 3He tubes in neutron detectors is growing. Specifically, the increase in challenging requirements for applications in research, industry, safety and homeland security triggered the search for better-suited detectors. Therefore, we developed a high performance, comparatively low-cost and easy to build cold neutron detector prototype (13.6 cm × 13.6 cm active area), employing digital silicon photomultipliers (SiPM) from Philips and a glass scintillator. The optical front end of the detector consists of a GS20 scintillator, enriched in 6Li, a light guide, SiPM arrays and an aluminum cap. In order to find the optimal front-end design, a series of Geant4 simulations were performed. In this work, we present a comparison between simulation results and measured validation data, considering the average number of photons detected and the maximum ratio (brightest pixel response divided by the sum of all pixel responses), for multiple design configurations.

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. 632 - Detector technology and systems (POF3-632) (POF3-632)

Experiment(s):

1. TREFF: Neutronenreflektometer (NL5S)

Appears in the scientific report 2019

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