Attenuation Coefficient of Single-Mode Periodic Waveguides [PDF]
Physical Review Letters, 2011 It is widely accepted that, on ensemble average, the transmission T of guided modes decays exponentially with the waveguide length L due to small imperfections, leading to the important figure of merit defined as the attenuation-rate coefficient α=-⟨ln(T)⟩/L.
Alexandre Baron +4 more
openaire +10 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 +4 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 +2 more
doaj +1 more source
Effective attenuation coefficient and penetration depth of 630 nm laser light in polyvinyl alcohol slime glue phantoms simulating the human brain tumour [PDF]
Proceedings of the Estonian Academy of Sciences, 2022 The effectiveness of optical methods such as photodynamic therapy (PDT) depends on the amount of light distribution within the tissue to aid their potential for early cancer detection in a quantitative and non-invasive manner.
Lindokuhle Ntombela +2 more
doaj +1 more source
Preparation and characterization of cogon grass natural fiber as a concrete filler for gamma radiation shielding [PDF]
, 2021 Concrete is a combination of cement, fine aggregate, coarse aggregate, and water. Concrete has a high shielding potential against gamma radiation from radioactive source.
Mohd Yusof, Yusrina, Othman, Siti Amira
core
Linear attenuation coefficient measurement in polymer composite
Iraqi Journal of Physics, 2019 Linear attenuation coefficient of polymer composite for beta particles and bremsstrahlung ray were investigated as a function of the absorber thickness and energy.
Nesreen B. Al-Rawi
doaj +1 more source
Gong-kuang zidonghua, 2018 In view of problems that existing ultrasonic detection method for concentration of tailing slurry has low accuracy and too many parameters, and cannot accurately reflect attenuation characteristics of the ultrasonic propagation in tailing slurry ...
WANG Jianxin, GAO Xin, ZHANG Yanping
doaj +1 more source
Image reconstruction using iterative transpose algorithm for optical tomography [PDF]
, 2007 This paper describes a transpose algorithm for use with an optical tomography system. The measurement system consisted of two orthogonal arrays, each having ten parallel views, resulting in a total of twenty sensors.
Abd. Rahim, Ruzairi +3 more
core +1 more source
Rapid detection of the adulterants in milk using gamma radiation
Journal of Agriculture and Food Research, 2023 Milk and dairy adulteration practice nowadays is becoming a global concern. The present study discloses the role of gamma irradiation as a cost-effective and rapid-detection approach to detect adulterants in milk instead of using expensive and time ...
Manali Chakraborty +2 more
doaj +1 more source
Ultrasonic attenuation in clean d-wave superconductors [PDF]
, 1999 We consider the attenuation of longitudinal ultrasonic waves in a clean two-dimensional d-wave superconductor. We show that the attenuation coefficient is linear in temperature at low temperatures for all in-plane directions of the propagation of the ...
Carbotte, J. P. +2 more
core +3 more sources