A precise model of a 40% relative efficiency p-type HPGe detector was created for photon detection efficiency calculation using the MCNP code. All detector parameters were determined by different experiments. No experimental calibration points were used for the modification of detector parameters. The model was validated by comparing calculated and experimental full energy peak efficiencies in the 40-2754 keV energy range, for point-source geometry with the source-to-detector distance of 25 cm.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.apradiso.2006.02.083 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Assessment of Radiological Safety of Ceramic Tiles Commonly Used in Polish Buildings.
Materials (Basel)
December 2024
Institute of Safety Engineering, Fire University, 52/54 Słowackiego St., 01-629 Warsaw, Poland.
The concentration of natural radionuclides Ra, Th and K in ceramic tiles manufactured in Poland is presented in this paper. The concentration of natural radioactive isotopes in the tested samples was determined using a low-level digital gamma ray spectrometer equipped with an HPGe semiconductor detector. The mean concentrations of Ra, Th and K in the analyzed samples were found to be 48 ± 3 Bq∙kg, 49 ± 3 Bq∙kg and 476 ± 23 Bq∙kg, respectively.
View Article and Find Full Text PDFUnveiling the radiation shielding efficacy of diorite, granodiorite, tonalite, and granite: experimental and simulation study.
Sci Rep
January 2025
Physics Department, Faculty of Science, Fayoum University, Fayoum, Egypt.
For the purpose of this study, four natural rock samples-namely, diorite, granodiorite, tonalite, and granite-are being investigated about their radiation attenuation. The elemental composition of the rocks was obtained through Energy dispersive X-ray spectroscopy (EDX) which examines the microstructural and localized area elemental analyses of the four rock samples. A Monte Carlo simulation (MCNP) was used to determine and evaluate the investigated samples.
View Article and Find Full Text PDFAbsolute calibration methodology for non-uniform uranium and matrix distributions in large barrels of uranium-bearing solid waste.
Sci Rep
December 2024
Nuclear Safeguards and Physical Protection Department, Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt.
The effective implementation of domestic and international safeguards necessitates verification techniques for Nuclear Materials (NM). Even in the case of very small quantities of NMs, accounting for and analyzing such traces can provide insights into the mass balance of NMs and/or state activities, ensuring consistency in state declarations. This paper proposes and benchmarks an absolute calibration methodology for estimating the uranium-mass content in large-volume barrels (200 L).
View Article and Find Full Text PDFA study on the mechanical and radiation shielding characteristics of concrete samples reinforced with brass alloy and boron carbide.
Appl Radiat Isot
December 2024
Bingöl University, Faculty of Arts and Science, Department of Physics, 12000, Bingöl, Türkiye.
In this study, the gamma radiation shielding properties of concrete samples reinforced with 10%, 20%, 30%, 40% and 50% of the cement weight of brass alloy were investigated. To test gamma shielding performance of the samples, mass and linear attenuation coefficients, half and tenth value layers, effective atomic number and radiation protection efficiency parameters were determined experimentally, theoretically and Monte Carlo simulations (GEANT4 and FLUKA). The studies were performed at 11 different gamma energies that range from 59.
View Article and Find Full Text PDFInvestigation of Gamma Ray Shielding Characteristics of Binary Composites Containing Polyester Resin and Lead Oxide.
Polymers (Basel)
November 2024
Department of Physics, Arts and Sciences Faculty, Giresun University, 28100 Giresun, Turkey.
Ionizing radiation plays an essential role across various fields but also poses significant health risks, requiring effective shielding solutions. This study focuses on the photon shielding properties of PbO-reinforced composites, specifically PbO-0, PbO-2, PbO-4, PbO-6, PbO-8, and PbO-10, through experimental measurements of photon energies ranging from 59.5 keV to 1408.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!