Results 11 to 20 of about 8,894,290 (234)

Leza Mesiah, Half the Sky, 1980-1986

open access: yes, 1984
December 1984, Volume II, Number 12 edition of a Newsletter for Half the Sky Newsletter.
Half the Sky
core   +7 more sources

Leza Mesiah, Half the Sky, 1980-1986

open access: yes
Flyer for "Announcing the First Women's Bookstore in Dallas: Half the ...
Half the Sky
core   +7 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

Method for Shielding Evaluation of Industrial Radiography with Ir [PDF]

open access: yesJournal of Radiation Protection and Research
Background Iridium-192 (192Ir) is one of the radioisotopes most commonly utilized for industrial radiography worldwide. In accordance with the Nuclear Safety Act of the Republic of Korea, the use of projectors containing 192Ir sources requires conducting
Byeonghyeon Park   +3 more
doaj   +1 more source

Determining X-Ray Effective Energy in Linear Accelerator (LINAC) Radiotherapy Instrument

open access: yesJurnal Ilmiah Pendidikan Fisika Al-Biruni, 2018
This research in determining x-ray effective energy in linear accelerator (Linac) radiotherapy device was done using copper plates at different thicknesses by determining the Half Value Layer (HVL) for each energy. The purpose of this research is to know
Fauziah Fauziah, Bualkar Abdullah
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

Fast neutrons and gamma rays shielding properties for some nylon composite [PDF]

open access: yesE3S Web of Conferences
In this study, The removal parameters of macroscopic fast neutron cross-section, linear gamma ray attenuation, mean free path, and half-value layer (half-value thickness) were calculated for a polymer composite containing nylon 6 as a base material and ...
Kareem Dawood Salwah   +3 more
doaj   +1 more source

Effect of Waste Iron Filings (IF) on Radiation Shielding Feature of Polyepoxide Composites

open access: yesCrystals, 2023
In the present work, photon and neutron attenuation properties of polyepoxide composites produced by doping waste iron filings (IF) at different percentages (0%, 20%, 40%, and 60% iron filing percentage) were obtained using theoretical and experimental ...
Mohammed T. Alresheedi, Mohamed Elsafi
doaj   +1 more source

Methodology study for determining the half-value layer using the Monte Carlo code PHITS

open access: yesBrazilian Journal of Radiation Sciences
For most purposes, the quality of a beam can be specified in terms of the half-value layer (HVL), which is the thickness of material required to reduce the air kerma  to half, at one meter from the source, from a unidirectional beam of infinitesimal ...
Ronald Soares, Marco Aurélio Lacerda
doaj   +1 more source

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