Results 31 to 40 of about 321,405 (167)

Performance characteristics of mobile MOSFET dosimeter for kilovoltage X-rays used in image guided radiotherapy

open access: yesJournal of Medical Physics, 2015
The main objective of this study was to investigate the characteristics of metal oxide semiconductor field effect transistor (MOSFET) dosimeter for kilovoltage (kV) X-ray beams in order to perform the in vivo dosimetry during image guidance in ...
A Sathish Kumar   +3 more
doaj   +1 more source

The effect of replacing sand by iron slag on physical, mechanical and radiological properties of cement mortar

open access: yesHBRC Journal, 2017
In the present study, the effects of replacing sand by high percentages of basic-oxygen furnace slag on the compressive strength, bulk density and gamma ray radiation shielding properties of mortar have been investigated.
Ahmed S. Ouda, Hamdy A. Abdel-Gawwad
doaj   +1 more source

Preparation and characterization of bismuth-filled high-density polyethylene composites for gamma-ray shielding

open access: yesRadiation Protection and Environment, 2019
An attempt has been made to prepare the nonlead-based gamma shielding materials by adding different weight percentages (0%, 10%, 20%, and 40%) of bismuth in high-density polyethylene (HDPE) matrix.
M Sheela   +3 more
doaj   +1 more source

Understanding radiation shielding performance through a comparative study of half value layer in novel and preexisting silicate glasses

open access: yesNuclear Engineering and Technology
This study focuses on evaluating the PbO-SiO2-B2O3-Na2O glasses' radiation shielding ability against various previously tested materials to gain an in-depth understanding of the glass system's attenuation capabilities.
Albandari.W. Alrowaily   +3 more
doaj   +1 more source

Development of high-performance heavy density concrete using different aggregates for gamma-ray shielding

open access: yesHBRC Journal, 2015
The performance requirements of the concrete of containment structures are mainly radiological protection, structural integrity, durability, etc. For this purpose, high-performance heavy density concrete can be used. After extensive trials and errors, 15
Ahmed S. Ouda
doaj   +1 more source

Investigation on radiation shielding parameters of cerrobend alloys

open access: yesNuclear Engineering and Technology, 2017
In this study, to determine the most effective alloy for shielding against gamma-rays, the gamma-ray shielding parameters of six types of cerrobend alloys have been investigated.
Borhan Tellili   +2 more
doaj   +1 more source

Pb-free Radiation Shielding Glass Using Coal Fly Ash

open access: yesJournal of Mathematical and Fundamental Sciences, 2015
In this work, Pb-free shielding glass samples were prepared by the melt quenching technique using subbituminous fly ash (SFA) composed of xBi2O3 : (60-x)B2O3 : 10Na2O : 30SFA (where x = 10, 15, 20, 25, 30 and 35 by wt%). The samples were investigated for
Watcharin Rachniyom   +3 more
doaj   +1 more source

Impact of $ \mathrm{Eu_2}\mathrm{O_3} $ and $ \mathrm{Er_2}\mathrm{O_3} $ on the gamma radiation shielding performance of $ \mathrm{B_2}\mathrm{O_3} $+CaO+ZnO+BaO+$ \mathrm{Eu_2}\mathrm{O_3} $ + $ \mathrm{Er_2}\mathrm{O_3} $ glass system [PDF]

open access: yesNuclear Technology and Radiation Protection
In this study, four rare earth-doped BaO-ZnO-CaO-$ \mathrm{B_2}\mathrm{O_3} $ glass samples were prepared using melt-quenching technique. The density of the glass was determined using Archimedes' method and found in range 3.28-3.72 $ gcm^{-3} $.
Almuqrin Aljawhara H.   +3 more
doaj   +1 more source

Mailed thermoluminescent dosimeter determination of entrance skin exposure and half-value layer in mammography [PDF]

open access: yesAmerican Journal of Roentgenology, 1978
A method of providing in vivo measurement of entrance skin exposure for mammography using mailed thermoluminescent dosimeters has been developed. The dosimeters are calibrated to 137Cs (662 keV), and a correction is applied to account for energy response.
J F, Wochos, G D, Fullerton, L A, DeWerd
openaire   +2 more sources

Investigation of the optical and radiation shielding parameters of erbium-doped zinc sodium tungsten borate glass using MCNP5 simulations

open access: yesMaterials Research Express
This study explores the potential of (20Na _2 O+25ZnO+10WO _3 +(60-x)B _2 O _3 +xEr _2 O _3 where x = 0.1, 0.5, 0.7, and 1 mol%) glass for optical and radiation shielding applications, fabricated using the melt quenching method.
Usman Iliyasu   +2 more
doaj   +1 more source

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