Results 11 to 20 of about 24,202 (229)
Investigation of inter-source and intra-source spectral variations in an electronic brachytherapy source using spectral measurements and Monte Carlo simulations. [PDF]
Med PhysAbstract Background The Xoft electronic brachytherapy source is commonly used to treat superficial lesions and tumors located at shallow depths. However, uncertainties in material composition and geometry, mainly arising due to the manual assembly of the x‐ray tube components, contribute to inter‐source variability in the tube output spectrum.
Esmaelbeigi A +6 more
europepmc +2 more sources
Evaluation of a CdTe semiconductor-based gamma camera for real-time dose dosimetry in boron neutron capture therapy. [PDF]
Med PhysAbstract Background Boron neutron capture therapy (BNCT) is a cancer treatment that leverages the nuclear reaction between boron‐10 (10B$^{10}{\rm B}$) and thermal neutrons to generate high‐energy α$\alpha$ particles and 7Li$^{7}{\rm Li}$ nuclei that selectively destroy cancer cells while sparing healthy tissues.
Chiu IH +5 more
europepmc +2 more sources
Development of an environmental monitoring station for HPGe detectors
Brazilian Journal of Radiation Sciences, 2021 Neutron Activation Analysis (NAA) is a well-established nondestructive analytic technique where the gamma radiation emitted by an irradiated sample is analyzed using an HPGe detector.
Gleiser Rodrigues de Melo +3 more
doaj +1 more source
X-ray and γ-ray Sensing from Aqueous-Based Lead Sulfide Telluride Nanocomposites. [PDF]
SmallPbSxTey nanoparticles integrate into flexible, size‐scalable aramid polymeric scaffolds, forming percolation paths capable of efficiently transporting the electrons and holes created by penetrating photonic interactions. The resulting nanosemiconductor‐nanofiber composite forms the basis for room‐temperature spectroscopic sensors of X‐rays and γ‐rays ...
Le VD +6 more
europepmc +2 more sources
A new technique for quick identification of defective region inside γ-ray detector [PDF]
EPJ Web of Conferences, 2023 The γ-ray detection efficiency of a detector decreases over time due to factors like radiation damage or an increase in the thickness of the inactive dead layer.
Das Biswajit +7 more
doaj +1 more source
Calibration of HPGe–HPGe coincidence spectrometer through performing standardisation of 125I activity by X-ray-gamma coincidence spectrometry using two HPGe detectors [PDF]
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2018 Abstract An X-ray-gamma coincidence measurement method for efficiency calibration of a HPGe–HPGe system, using the methodology for activity standardisation of 125 I, has been developed. By taking one list-mode time-stamped measurement of the 125 I source, six spectra were generated in post-processing: total spectra, coincidence spectra and energy ...
Marković, Nikola +4 more
openaire +2 more sources
Emergency unmanned airborne spectrometric (HPGe) monitoring system
Applied Radiation and Isotopes, 2023 After a nuclear or radiation event, emergency responders and radiation protection authorities need quick and credible information based on reliable accident and post-accident radiological data. However, risks to people in the vicinity of the source pose serious measurement challenges.
Jan Rusňák +5 more
openaire +2 more sources
Simulation of a HPGe Detector with GEANT4
Revista Politécnica, 2022 Gamma spectroscopy is an analytic technique that identifies isotopes through gamma rays. Currently, gamma spectroscopy is widely used in several science fields, for instance, the study of the hydrodynamics of soils and other applications. Considering the
Sebastián Sarasti-Zambonino +2 more
semanticscholar +1 more source
IEEE Transactions on Nuclear Science, 2022 We have proposed a planar electronically segmented high-purity germanium (HPGe) detector concept in combination with a multislit collimator for gamma emission tomography. In this work, the spatial resolution achievable using the collimated segmented HPGe
V. Rathore +5 more
semanticscholar +1 more source
Airborne HPGe spectrometer for monitoring of air dose rates and surface activities
Nuclear Engineering and Technology, 2023 This contribution describes the application of HPGe detector for the airborne quantitative analysis. The hardware of the airborne HPGe system was designed from the commercial components with only exception of the newly designed AirHPGeSpec special ...
Marcel Ohera +4 more
doaj +1 more source