Results 11 to 20 of about 1,079,802 (320)

A study on the mean free path and half value layer at various alloys for different photon energies

Journal of X-Ray Science and Technology, 2011
The mean free path (mfp) and half value layer (x(1/2)) values of binary and ternary alloys consist of 3d transition metals have been have been calculated at photon energies 22.1, 25.0, 59.5 and 88.0 keV.
AYGÜN, MURAT, HAN, İBRAHİM, Narmanli, E., Aygun, M., DEMİR, Lütfü, Han, I., Demir, L.   +6 more
core   +2 more sources

Reference dosimetry at the Australian Synchrotron's imaging and medical beamline using free‐air ionization chamber measurements and theoretical predictions of air kerma rate and half value layer

Medical Physics (Lancaster), 2013
Purpose: Novel, preclinical radiotherapy modalities are being developed at synchrotrons around the world, most notably stereotactic synchrotron radiation therapy and microbeam radiotherapy at the European Synchrotron Radiation Facility in Grenoble ...
Terese Nordström, Nordström, Terese,, Peter A. W. Rogers, Stevenson, A. W., Jeffrey C. Crosbie, Jessica E. Lye, Rogers, P. A. W., Midgley, S. M., Crosbie, J. C., Lye, J. E., Lewis, R. A., Robert A. Lewis, Christopher J. Hall, Hall, C. J., Andrew W. Stevenson, Stewart M. Midgley   +15 more
core   +2 more sources

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

American 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   +3 more sources

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

Nuclear 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, Aljawhara H. Almuqrin, M.I. Sayyed, B. Albarzan   +3 more
doaj   +2 more sources

Half-value layer

Radiopaedia.org, 2013
Henry Knipe, Amy H Porter, Kanchanok Prasittimet   +2 more
openaire   +2 more sources

Investigation of gamma radiation shielding features for modified structural materials for nuclear energy and nuclear medicine [PDF]

Nuclear Technology and Radiation Protection, 2023
In this paper, shielding characteristics of three concrete samples with different B4C,Fe3O4,and BaSO4 contents were examined by determining their theoretical and experimental mass attenuation coefficients at photon energies of 15 MeV.
Zaripova Yuliya, Dyachkov Vyacheslav, Gladkikh Tatyana, Bigeldiyeva Mirgul, Diab Nasr Ahmed Nasr   +4 more
doaj   +1 more source

Validation of a Proposed Equation for Determining the Half-Thickness Value of Gamma and X-Ray Radiation

Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2023
Half-value layer (HVL) is energy dependent on the photon, much as the attenuation coefficient. Increasing the penetrating energy of a photon stream causes an increase in a substance's HVL.
Hasan Bircan, Kaan Manisa, Meryem Cansu Şahin   +2 more
doaj   +1 more source

Gamma Radiation Shielding Properties of Slag and Fly Ash-based Geopolymers

Atom Indonesia, 2021
Industrial waste-based geopolymer cement is a greener alternative to Ordinary Portland Cement (OPC) for radiation shielding with comparable mechanical properties without the production of CO2 during synthesis.
M. W. Hasan, S. Sugiharto, S. Astutiningsih   +2 more
doaj   +1 more source

Lead-borate glass system doped with Sm3+ ions for the X-ray shielding applications

Results in Physics, 2022
The impact of varying Sm2O3 content on radiation shielding properties of 15PbF2: (65-x) B2O3: 20K2O:xSm2O3 (where 0 ≤ x ≤ 1.5 mol %) glass samples, was investigated by studying their physical, radio-luminescence and X-ray-shielding characteristics.
S. Mukamil, Ikram Ullah, C. Sarumaha, S.M. Wabaidur, M.A. Islam, S.A. Khattak, S. Kothan, M. Shoaib, I. Khan, I. Ullah, J. Kaewkhao, G. Rooh   +11 more
doaj   +1 more source

Radiation shielding properties of weathered soils: Influence of the chemical composition and granulometric fractions

Nuclear Engineering and Technology, 2022
Soils are porous materials with high shielding capability to attenuate gamma and X-rays. The disposal of radionuclides throughout the soil profile can expose the living organisms to ionizing radiation.
Luiz F. Pires
doaj   +1 more source