Simulation of the response of the Solid State Neutron Detector for the European Spallation Source

Boyd, L.; Rofors, E.; Annand, J. R. M.; Fissum, Kevin; Hall-Wilton, R.; Jebali, R. Al; Kanaki, K.; Livingston, K.; Maulerova, V.; Mauritzson, N.; Montgomery, R. A.; Perrey, H.; Seitz, B.

doi:10.1016/j.nima.2021.165174

Cited by 2 publications

(1 citation statement)

References 14 publications

(14 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…GEANT4 version 4.10.04 [27] patch 03 ( 8February 2019) was employed, with a physics list based on the hadronic class FTFP_BERT_HP and electromagnetic physics classes G4EmStandardPhysics and G4EmExtraPhysics, using a procedure similar to that reported in Ref. [29]. The resulting model was used to simulate the gamma-ray response by modeling the gamma-ray interactions in the detector and tracking the secondary electrons and scintillation photons that they produced.…”

Section: Geant4 Simulationmentioning

confidence: 99%

GEANT4-based calibration of an organic liquid scintillator

Mauritzson

Rofors

Fissum

et al. 2021

Self Cite

View full text Add to dashboard Cite

A light-yield calibration of an NE 213A organic liquid scintillator detector has been performed using both monoenergetic and polyenergetic gamma-ray sources. Scintillation light was detected in a photomultiplier tube, and the corresponding pulses were subjected to waveform digitization on an event-by-event basis. The resulting Compton edges have been analyzed using a GEANT4 simulation of the detector which models both the interactions of the ionizing radiation as well as the transport of scintillation photons. The simulation is calibrated and also compared to well-established prescriptions used to determine the Compton edges, resulting ultimately in light-yield calibration functions. In the process, the simulation-based method produced information on the gain and intrinsic pulseheight resolution of the detector. It also facilitated a previously inaccessible understanding of the systematic uncertainties associated with the calibration of the scintillation-light yield. The simulation-based method was also compared to well-established numerical prescriptions for locating the Compton edges. Ultimately, the simulation predicted as much as 17% lower light-yield calibrations than the prescriptions. These calibrations indicate that approximately 35% of the scintillation light associated with a given gamma-ray reaches the photocathode. It is remarkable how well two 50 year old prescriptions for calibrating scintillation-light yield in organic scintillators have stood the test of time.

show abstract

Section: Geant4 Simulationmentioning

confidence: 99%