Results 11 to 20 of about 1,514,488 (302)

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

Australasian 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, T, Katsuda, R, Gotanda, A, Tabuchi, K, Yamamoto, T, Kuwano, H, Yatake, K, Kashiyama, Y, Takeda   +8 more
openaire   +2 more sources

Study of gamma radiation shielding efficiency by 0.5TeO₂-(0.5-x)Bi₂O₃-xWO₃ glasses

Eurasian Journal of Physics and Functional Materials, 2021
This article is devoted to the study of determination of gamma radiation shielding efficiency by new radiation-resistant glasses of the 0.5TeO2-(0.5-x)Bi2O3-xWO3 type.
A. .. Temir, K. Sh. Zhumadilov, A. .. Kozlovskiy, A. .. Smagulova, D. I. Shlimas, A. V. Trukhanov   +5 more
doaj   +1 more source

Theoretical Investigation of Fast Neutron and Gamma Radiation Properties of Polycarbonate-Bismuth Oxide Composites Using Geant4

Nanomaterials, 2022
The gamma mass (µm) and linear (µ) attenuation coefficients of polycarbonate-bismuth oxide composites (PC-Bi2O3) with different bismuth oxide weight factors were investigated theoretically using EpiXS and a Monte Carlo simulation-based toolkit and Geant4
Hanan Akhdar
doaj   +1 more source

Coulomb Drag in the Extreme Quantum Limit [PDF]

, 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, H. Rubel, I. Ussishkin, J. P. Eisenstein, J. P. Eisenstein, J. P. Eisenstein, K. Flensberg, K. Flensberg, K. W. West, L. N. Pfeiffer, M. C. Bønsager, M. P. Lilly, N. E. Bonesteel, N. Hill, S. Sakhi, T. J. Gramila, T. J. Gramila, U. Sivan   +17 more
core   +2 more sources

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

, 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., Craciun, V., Elders, J., Gardeniers, J.G.E., Geretovsky, J.   +4 more
core   +3 more sources

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

, 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, Dhoedt, Bart, Leroux, Sam, Simoens, Pieter, Vankeirsbilck, Bert, Verbelen, Tim   +5 more
core   +1 more source

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

Nuclear 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, Rajasekar Ayyalusamy, Arunachalam Kalidas   +2 more
doaj   +1 more source

Measurement of Half-value Layer in Mammography

Japanese 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, Reiko, Kitamura, Rie, Saruwatari, Natsuko, Doi, Eriko, Yamane   +4 more
openaire   +3 more sources

Entanglement Spectrum and Entanglement Thermodynamics of Quantum Hall Bilayers at nu=1 [PDF]

, 2011
We study the entanglement spectra of bilayer quantum Hall systems at total filling factor nu=1. In the interlayer-coherent phase at layer separations smaller than a critical value, the entanglement spectra show a striking similarity to the energy spectra
B. I. Halperin, John Schliemann, L. D. Landau   +2 more
core   +2 more sources

The Precision of Half-value Layer Measurement on Mammography

Japanese Journal of Radiological Technology, 2011
The half-value layer (HVL) is an important index of the image quality or radiation risk in mammography. Radiation risk of the breast tissue is evaluated with the average glandular dose. The HVL index is indispensable for the average glandular dose computations.
Rie, Ishii, Akira, Yoshida, Mie, Ishii, Shiho, Fujimoto, Noriko, Henmi   +4 more
openaire   +3 more sources