Zobrazeno 1 - 10
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pro vyhledávání: '"Fayez H.H. Al-Ghorabie"'
Autor:
Fayez H.H. Al-Ghorabie
Publikováno v:
Journal of Radiotherapy in Practice. 14:43-55
BackgroundSuperficial X-ray therapy units are used for the treatment of certain types of skin cancer and some severe dermatological conditions. The performance assessment and beam characteristics of the superficial unit are very important to ensure a
Publikováno v:
Journal of Radiotherapy in Practice. 9:223-236
A computer user-code (TRANSMIT), based on the use of the EGSnrc Monte Carlo system, was developed to simulate the transmission of megavoltage x-rays through three different materials used for shielding purposes in radiotherapy. These materials are Li
Autor:
Fayez H.H. Al-Ghorabie
Publikováno v:
Applied Radiation and Isotopes. 64:85-92
In this paper, the EGS4 Monte Carlo simulation system was used to develop a computer code for a study of the response of a NaI(Tl) detector exposed to gamma-rays with energies below 300 keV. This study comprised registration of the spectra of the inc
Autor:
Fayez H.H. Al-Ghorabie
Publikováno v:
Environmental Research. 98:160-166
This paper describes measurements of external gamma radiation dose rate from terrestrial gamma-rays 1m above the ground in three different mountainous locations in the western region of the Kingdom of Saudi Arabia. These locations are At-Taif city, A
Autor:
Fayez H.H. Al-Ghorabie
Publikováno v:
Radiation Protection Dosimetry. 113:178-184
This paper describes measurements of indoor gamma radiation dose in At-Taif city, Kingdom of Saudi Arabia. CaSO 4 :Dy thermoluminescence dosemeters were used for the detection of gamma radiation in 250 houses within the city. The values of indoor gam
Autor:
Fayez H.H. Al-Ghorabie
Publikováno v:
Australasian Physics & Engineering Sciences in Medicine. 26:185-193
In this paper a computer model based on the use of the well-known Monte Carlo simulation code EGS4 was developed to simulate the scattering of polyenergetic X-ray beams through some materials. These materials are: lucite, polyethylene, polypropylene
Autor:
Fayez H.H. Al-Ghorabie
Publikováno v:
Journal of X-ray science and technology. 23(1)
An EGSnrc user code is developed to simulate a backscattered geometry in vivo x-ray fluorescence system for the measurement of platinum concentration in head and neck tumours. The user code is fundamentally based on a previous study which used the EG
Autor:
Fayez H.H. Al-Ghorabie
Publikováno v:
Radiation and Environmental Biophysics. 39:141-145
A Monte Carlo model has been developed to support the design of a 180 degrees geometry x-ray fluorescence system for the measurement of cadmium concentration in deep body organs such as the kidney. 133Xe was investigated as the excitation photon sour
Autor:
S. S. Babkair, S. S. Natto, Fayez H.H. Al-Ghorabie, A. A. Kutub, A. S. Faidah, A. M. Alsanoosi
Publikováno v:
Journal of Materials Science. 27:1343-1346
A series of glass samples were prepared from admixtures of P2O5, V2O5 and CuO and results are reported for optical absorption, infrared absorption spectra and differential scanning calorimetry (DSC) as a function of copper content up to 10 mol%. It i
Publikováno v:
Journal of Materials Science. 26:4421-4426
A series of glass samples was prepared from mixtures of Na2B4O7 and V2O5. Measurements were made for infrared absorption and optical absorption spectra as a function of V2O5 content up to 10 mol%. The addition of V2O5 did not introduce any new absorp