The x-ray mass-attenuation coefficient of copper was measured at 108 energies between 5 and 20 keV using synchrotron radiation. The measurements are accurate to between 0.09 and 4.5 %, with most measurements being accurate to better than 0.12%. The imaginary component of the form factor of copper was also determined after subtracting the attenuation contribution due to scattering. Measurements ...

The variation in mass attenuation coefficient μ for total and partial photon interaction processes for three different oxide glasses (65CaO-35Al2O3(OG1) , 20Na2O-80SiO2(OG2), and 20Na2O-5Al2O3-75SiO2 (OG3)), in the incident energy range from 10 keV to 100 GeV has been studied using software package XCOM and the effect of chemical composition on the values of μ is also interpreted graphically. M...

The purpose of this experiment is to understand the interaction of radiation and matter, and the application to radiation detection and shielding. The inverse square law of the distance is demonstrated with the gamma radiation from Co 60 preparation, the halfvalue thickness and absorption coefficient of various materials determined with the narrow beam system and the corresponding mass attenuat...

The composition of phytoplankton and the concentration pigments in their cells make absorption specific coefficients key parameters for bio-optical modeling. This study investigated whether multispectral vertical diffuse attenuation coefficient downward irradiance (Kd) gradients could be a good framework accessing genera. In situ measurements remote sensing reflectance (Rrs), obtained an Amazon...

We used the x-ray extended-range technique to measure the x-ray mass attenuation coefficients of silicon with an accuracy between 0.27% and 0.5% in the 5 keV220 keV energy range. Subtraction of the x-ray scattering contribution enabled us to derive the corresponding x-ray photoelectric absorption coefficients and determine the absolute value of the imaginary part of the atomic form factor of si...

The present investigation is to study the surface waves propagation with imperfect boundary between an isotropic elastic layer of finite thickness and a homogenous isotropic thermodiffusive elastic half- space with rotation in the context of Green-Lindsay (G-L model) theory. The secular equation for surface waves in compact form is derived after developing the mathematical model. The phase velo...