This work presents initial steps toward assessing the feasibility of using high-pressure helium-4 (He-4) scintillation detectors in an active-interrogation system utilising the Threshold Energy Neutron Analysis (TENA) technique for the detection of special nuclear materials (SNMs). The proposed setup consists of a deuterium–deuterium (DD) based Inertial Electrostatic Confinement (IECF) fusor...
LiquidO is an innovative scintillator-based radiation detector concept whose core principle is the self-segmentation of the detector volume via stochastic light confinement in an opaque medium. Light produced in the scintillator is confined near its creation point thanks to the short scattering length of the material, and efficiently collected by a lattice of wavelength-shifting optical fibres...
Metal halide perovskite thin-films are among the promising class of materials with significant potential for large-area radiation detectors. While solution-based processing is common, it presents challenges in achieving uniform, thick films. This study explores single-source vacuum deposition (SSVD) as an alternative and simplified method by utilising a single precursor to enhance control over...
Two-dimensional (2D) hybrid perovskite materials have emerged as promising candidates for next-generation scintillators due to their high light yields, fast radiative recombination and low-temperature solution-processability [1]. The aim of this study is to develop a bright, efficient radiation detector using different fabrication processes such as doping and pellet pressing for nuclear...
For personal radiological health monitoring, thermoluminescence dosimetry (TLD) provides a method to estimate the absorbed dose for an individual over a specified time interval. A dosimeter captures and traps ionised electrons, which, when heated, release the trapped electrons via electron-hole recombination, through an emission of light called a glow curve. For TLD, the material’s...
Radiation sources have been shown to have many applications in nuclear threat reduction (NTR), including radiography (whether in ports or ‘in the field’) and nuclear scattering (either polarised or unpolarised gamma rays for identification of isotope specific content).
Laser wakefield acceleration (LWFA) is a mechanism by which electrons may be accelerated over much shorter distances than...
This study examined the influence of multi-pixel detector (MPD) geometry on performance in environmental radiation monitoring, with emphasis on geometric configuration, angular response, and spectral quality. Geant4 simulations were used to model both cubic and non-cubic detector arrays, which were evaluated through metrics including hit distribution, angular sensitivity, and energy...
