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/ Guilbert, N. Et al. British Library Online Contents 2004. WinXCom—a program for calculating X-ray attenuation coefficients. For γ-ray attenuation, the program predictions were tested by comparing them with the well-known WinXcom program results and an excellent agreement was noticed. Also, it has been used for calculating the values of macroscopic effective removal cross-sections Σ R (cm −1 ) for five new published polyamide and anhydride composites designed for.

Article citations Gerward, L., Guilbert, N., Jensen, K.B. And Levring, H. (2004) WinXCom—A Program for Calculating X-Ray Attenuation Coefficients. Radiation Physics and Chemistry, 71, 653-654. Has been cited by the following article: • TITLE: AUTHORS:, KEYWORDS:,,,,,,, JOURNAL NAME:,, February 26, 2016 ABSTRACT: In this work, the Styrene-butadiene rubber (SBR)/lead oxide and the Styrene-butadiene rubber (SBR)/lead nitrate composites were prepared as gamma-radiation shielding materials.

The investigated materials were prepared with three different weight percentage of lead oxide and lead nitrate (30, 50 and 70 wt%). The mass attenuation coefficients (μm) for all composite samples were measured experimentally at 511 and 661.6 keV photon energies. The measurements were made by performing transmission experiments with a 3' × 3' NaI (Tl) scintillation detector, which had an energy resolution of 7% at 0.662 MeV for the gamma-rays from the decay of 137Cs.

Dolzhnostnaya instrukciya pedagoga psihologa v shkole respubliki kazakhstan. The effective atomic numbers (Zeff) and the effective electron densities (Neff) were determined experimentally. Also they were determined theoretically using the obtained μm values for the studied composites samples by WinXCom program.

The obtained results show that the experimental values of the composites are found to be in a good agreement with the theoretical values. It is recognized that the mass attenuation coefficient (μm), effective atomic numbers (Zeff) and the effective electron densities (Neff) are increased in the composite samples which contain lead oxides than which contain lead nitrates. Finally, the Styrene-butadiene rubber (SBR)/lead oxide is better than Styrene-butadiene rubber (SBR)/lead nitrate polymer as gamma radiation shielding.