Results 11 to 20 of about 1,506,118 (205)

A rapid and direct method for half value layer calculations for nuclear safety studies using MCNPX Monte Carlo code

open access: yesNuclear Engineering and Technology, 2022
Half Value Layer calculations theoretically need prior specification of linear attenuation calculations, since the HVL value is derived by dividing ln(2) by the linear attenuation coefficient.
H.O. Tekin   +3 more
doaj   +3 more sources

Gamma Ray and FTIR Studies in Zinc Doped Lead Borate Glasses for Radiation Shielding Application [PDF]

open access: yesMaterials Research, 2018
Gamma ray shielding properties of borate glass samples containing oxides of lead and zinc are prepared by melt and quench technique and evaluated theoretically using XCOM computer software for gamma ray shielding properties.
Zakiyyu Ibrahim Takai   +8 more
doaj   +1 more source

Half-value layer measurement: simple process method using radiochromic film [PDF]

open access: yesAustralasian Physics & Engineering Sciences in Medicine, 2009
Although the half-value layer (HVL) is one of the important parameters for QA and QC, constant monitoring has not been performed because the measurements using an ionization chamber (IC) are time-consuming and complicated. To solve these problems, the use of radiochromic film (GAFCHROMIC XR TYPE R: GAF-R) with step-shaped aluminum (Al) filters ...
T, Gotanda   +8 more
openaire   +2 more sources

Impacts of micro-size PbO on the gamma-ray shielding performance of polyepoxide resin

open access: yese-Polymers, 2023
A series of polyepoxide resins doped by lead oxide with low concentrations were fabricated in order to study the impacts of low PbO concentrations on the fabricated composites’ physical- and radiation-shielding properties.
Alorain Dalal A.   +3 more
doaj   +1 more source

Coulomb Drag in the Extreme Quantum Limit [PDF]

open access: yes, 1997
Coulomb drag resulting from interlayer electron-electron scattering in double layer 2D electron systems at high magnetic field has been measured. Within the lowest Landau level the observed drag resistance exceeds its zero magnetic value by factors of ...
A. P. Jauho   +17 more
core   +2 more sources

Impact of WO3 and BaO nanoparticles on the radiation shielding characteristics of polydimethylsiloxane composites

open access: yese-Polymers, 2023
In this study, we developed flexible composites using silicone rubber (SR) or polydimethylsiloxane as the matrix and WO3 and BaO nanoparticles as filler to analyze their radiation-shielding performance. The linear attenuation coefficient (LAC) values for
Alorain Dalal A.   +3 more
doaj   +1 more source

Growth of ZnO thin films on GaAs by pulsed laser deposition [PDF]

open access: yes, 1995
ZnO thin films have been grown on GaAs substrates using the pulsed laser deposition technique with or without a photodeposited SiO2 buffer layer. The presence of the SiO2 layer has a beneficial effect on the crystalline quality of the grown ZnO films ...
Boyd, Ian W.   +4 more
core   +3 more sources

Radiation shielding potential of ultra-high strength concrete from agro-industrial waste [PDF]

open access: yesNuclear Technology and Radiation Protection
Ultra-high strength concrete produced with agro-residual wastes and industrial by-products were tested for radiation shielding capacity by measuring the linear attenuation coefficient, half value layer and tenth value layer.
Rajkumar Deivendiran   +2 more
doaj   +1 more source

Measurement of Half-value Layer in Mammography

open access: yesJapanese Journal of Radiological Technology, 2003
The half-value layer (HVL) of an X-ray beam for film-screen mammography is considered an important parameter for image quality and patient dose. Thus, HVL must be measured in accordance with The Manual of Accuracy for Mammography printed by the Japanese Society of Radiological Technology.
Hirofumi, Yagi   +4 more
openaire   +3 more sources

Resource-constrained classification using a cascade of neural network layers [PDF]

open access: yes, 2015
Deep neural networks are the state of the art technique for a wide variety of classification problems. Although deeper networks are able to make more accurate classifications, the value brought by an additional hidden layer diminishes rapidly.
Bohez, Steven   +5 more
core   +1 more source

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