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| Home > Publications database > Non-linearity Analysis of digital SiPM arrays response in a Position Sensitive Neutron Detector Prototype |
| Poster (After Call) | FZJ-2019-06596 |
; ;
2018
Abstract: Silicon photomultipliers (SiPM) are solid-state photodetectors based on Geiger mode avalanche diode technology. The features of SiPMs such as low operating voltages, insusceptibility to magnetic field and low production costs make it a very appealing candidate for single photon detection applications. In the recent past its applicability in neutron detection had been assessed and proved feasible. Motivated by this investigation, a new kind of scintillation neutron detector based on digital SiPMs is under development. This detector prototype with an active area of 13 cm × 13 cm, is assembled with SiPM modules from Philips Digital Photon Counting and a 6Li glass scintillator. It is aimed to be used in the future for neutron reflectometry (NR) at the Heinz Maier-Leibnitz Zentrum (MLZ) in Garching, Germany for the TREFF instrument. In order to achieve the goal of two dimensional spatial resolution of 1 mm × 1 mm, and a neutron counting rate of 20 Mcps/m², non-linearity characterization of the SiPM has been performed. This work presents the simulation results performed using Geant4 tool-kit for the SiPM proportionality response at the pixel and cell levels under the design considerations of this detector prototype.
Keyword(s): Engineering, Industrial Materials and Processing (1st) ; Instrument and Method Development (2nd)
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