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

Summary, in English

The characteristics of the Solid-state Neutron Detector, under development for neutron-scattering measurements at the European Spallation Source, have been simulated with a Geant4-based computer code. The code models the interactions of thermal neutrons and ionising radiation in the ⁶Li-doped scintillating glass of the detector, the production of scintillation light and the transport of optical, scintillation photons through the scintillator, en route to the photocathode of the attached multi-anode photomultiplier. Factors which affect the optical-photon transport, such as surface finish, pixelation of the glass sheet, provision of a front reflector and optical coupling media are compared. Predictions of the detector response are compared with measurements made with neutron and gamma-ray sources, a collimated alpha source and finely collimated beams of 2.5 MeV protons and deuterons.

• Author: L. Boyd; E. Rofors; J. R.M. Annand; K. G. Fissum; R. Hall-Wilton; R. Al Jebali; K. Kanaki; K. Livingston; V. Maulerova; N. Mauritzson; R. Montgomery; H. Perrey; B. Seitz
• Department/s: Nuclear physics
• Publishing year: 2021
• Language: English
• Publication/Series: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• Volume: 998
• Links: http://dx.doi.org/10.1016/j.nima.2021.165174
• Document type: Journal article
• Publisher: Elsevier
• Topic: Accelerator Physics and Instrumentation
• Keywords: Monte Carlo simulation of detector characteristics; Solid state thermal neutron detector
• Status: Published
• ISBN/ISSN/Other: ISSN: 0168-9002