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Deep learning on simulated gamma spectra for explosives detection using a NaI detector

The detection of explosives and contraband materials using neutron activation analysis (NAA) is a critical component of modern security systems. This study investigates the feasibility of identifying explosive materials using a simple sodium iodide …

Spectrum analysis for identification of nuclides at radiological crime scene

Gamma-ray spectroscopy is an essential technique for identifying the composition of radioactive materials. This work presents a detailed algorithm for analysing gamma-ray spectra, focusing on peak detection, energy calibration, efficiency calibration …

Simulated near-field radioactive source localization in 3D with Coded Aperture and Convolutional Neural Networks

Coded Aperture γ-cameras have been extensively used in applications ranging from astrophysics to nuclear medicine for imaging radioactive source distributions. These devices allow the identification of the direction of γ-emitters by analyzing the …

LURAD: Design Study of a Comprehensive Radiation Monitor Package for the Gateway and the Lunar Surface

Moon is an auspicious environment for the study of Galactic cosmic rays (GCR) and Solar Particle Events (SEP) due to the absence of magnetic field and atmosphere. The same characteristics raise the radiation risk for human presence in orbit around it …

Data Acquisition System of a Comprehensive Radiation Monitor for Lunar Mission

The data acquisition system of a radiation monitor package for lunar mission is presented. The package enables the measurement of the flux of all the main particles present in the lunar environment as a function of their energy, as well as the …

A machine learning approach in the estimation of a radioactive source position using a coded aperture device

Coded Aperture γ-cameras have been used for more than three decades for imaging radioactive source distributions encountered in astrophysics, in decommissioning of nuclear facilities, and in nuclear medicine. These devices enable the identification …

GEANT4 simulation study of the response of a miniature radiation detector in Galactic Cosmic Rays and inside a spacecraft.

The Miniaturized Detector for Application in Space (MIDAS) is a compact device with dimensions 5 x 5 x 1 cm 3 which combines position sensitive Si detectors and a fast neutrons spectrometer. MIDAS is developed with purpose to act as a linear energy …

Radioactive source localization using a data driven MVA method

We present a small form factor (0.5 cm3) static CdZnTe (CZT) sensor network consisted of a number of Non Directional Detectors (NDD) capable to localize a stationary radiation source in 3D. The localization is performed with fusion algorithms based …

The MIDAS dosimeter/particle monitor of charged particles and neutrons for space environment

Radiation doses received by astronauts outside the geomagnetic field are a main risk factor for human space exploration. The Miniaturized Detector for Application in Space (MIDAS) device is a highly miniaturized radiation detector (mass

Localization of radioactive source using a network of small form factor CZT sensors

We present a small factor (0.5 cm3) CZT static sensor network consisted of a number of Non-Directional Detectors (NDD) capable to localize bare and lightly shielded radiation sources. The localization is performed with a fusion algorithm based on a …