Zobrazeno 1 - 10
of 40
pro vyhledávání: '"J.M. Sharaf"'
Publikováno v:
Nuclear Engineering and Technology, Vol 55, Iss 12, Pp 4426-4430 (2023)
In this article, Exposure Buildup Factor(EBF) and the Energy Absorption Buildup Factor(EABF) have been determined for blood, brain, and muscle using the Monte Carlo method which is represented by MCNP5 codes and compared with geometric progression(G-
Externí odkaz:
https://doaj.org/article/dde3b10a58d84f1e94e0a8da23108240
Publikováno v:
Latvian Journal of Physics and Technical Sciences. 59:64-73
To research the improvements of clinical imaging of human tissues, tissue-equivalent materials are one of the reasonable strategies for evaluating the impact of radiation dosages on human tissues. Hence, considering mass and linear attenuation coeffi
Publikováno v:
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 167
During superficial radiotherapy, and for cases where bony structures lie relatively close to the surface behind the tissue region being treated, perturbations to delivered dose are expected due to the change in tissue scattering conditions and the va
Publikováno v:
Radiation Physics and Chemistry. 149:90-103
Unlike for external beam treatment, Model Based Dose Calculation Algorithms for Brachytherapy are still under development, and have been recently encouraged by the American Association of Physicists in Medicine. This delay is at least partially cause
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Autor:
H.H. Saleh, J.M. Sharaf
Publikováno v:
Radiation Physics and Chemistry. 110:87-95
The shielding properties of three different construction styles, and building materials, commonly used in Jordan, were evaluated using parameters such as attenuation coefficients, equivalent atomic number, penetration depth and energy buildup factor.
Publikováno v:
Radiation Physics and Chemistry. 165:108388
Geometric progression fitting method was used for the computation of the gamma-ray EABF of eleven tissue equivalent materials and nine human organs and tissues up to energy 3 MeV. Quantitative comparison of photon absorption and scattering properties
Autor:
J.M. Sharaf, M.S. Hamideen
Publikováno v:
Annals of Nuclear Energy. 62:50-56
The present study was conducted to investigate the attenuation properties of building materials commonly used in Jordan. The photon interactions with materials of interest were discussed in terms of mass attenuation coefficients for the 50–3000 keV
Publikováno v:
Radiation Physics and Chemistry. 85:12-17
A Monte Carlo simulation study has been conducted of 60Co photons Compton scattered in concrete, illustrating the degraded energy spectra of gamma-ray radiation. Results are produced representing a NaI(Tl) detector model. We were able to analyse ener
Autor:
J.M. Sharaf, M.S. Hamideen
Publikováno v:
Radiation Physics and Chemistry. 81:1559-1562
The specific activity, hazard index, and the annual effective dose of the terrestrial naturally occurring radionuclides ( 238 U, 232 Th, and 40 K) were determined in soil samples obtained from 20 sites of phosphate hills in the Russaifa region using