In this work, it was found that at increased thicknesses of the concrete samples, the linear attenuation, mass attenuation coefficient, half value layer and tenth value layer of the concrete improved.
Linear and total mass attenuation coefficients, half-value layer (HVL) and tenth-value layer (TVL) were determined at photon energies of 0.2 MeV, 0.662 MeV and 1.25 MeV.
Adrenal masses with intratumoral hemorrhage typically present as heterogeneous masses with different attenuation values on MDCT, and mimic ACTs (Fig. 7).
Gamma shielding effectiveness of the alloys was studied by calculation of mass attenuation coefficient, half-value layer and exposure buildup factor (EBF).
Gamma ray shielding behaviour of any material can be studied by various interaction parameters such as total mass attenuation coefficient (μm); half value layer (HVL); tenth value layer (TVL); effective atomic number (Zeff), electron density (Nel), effective atomic weight (Aeff) and buildup factor.
The XCom program has been used to calculate the mass attenuation coefficients (μm), half value layer (HVL) and mean free path (MFP) in the energy range 1 keV 100 GeV of four different Er+3 concentrations of EDFA amplifiers.
On CT, lipomas appear as sharply defined, ovoid masses with fat equivalent attenuation values of −40 to −100 HU.
This constellation of findings helps in diagnosing this as a complicated renal cyst than an enhancing solid mass Radiation dose reduction The attenuation values of the VNC images from SDCT have been shown to be similar to true unenhanced images in all tissues except for subcutaneous fat [17].
It has been observed that among the selected concretes, steel magnetite offers maximum value for linear attenuation coefficient, mass attenuation coefficient, equivalent atomic number and least values in terms of penetration depth equivalent to mean free path and exposure buildup factors.
