Calculation of Total Mass Attenuation Coefficients. WinXCom – a program for calculating X-ray attenuation coefficients. Mass Attenuation Coefficients and Related. Introduced the WinXCom program for calculating the mass. The X-ray linear attenuation coefficients of. WinXCom-a program for calculating X-ray attenuation coefficients. WinXCom-a program for calculating X-ray attenuation coefficients Author / Creator: Gerward, L. / Guilbert, N. Analytical formulas for calculating photoelectric attenuation coefficients. ![]() Determination of total mass attenuation coefficients, effective atomic numbers and electron densities for different shielding materials Determination of total mass attenuation coefficients, effective atomic numbers and electron. Elmahroug, Y.; Tellili, B.; Souga, C. 2015-01-01 00:00:00 •The gamma shielding properties of eight shielding materials have been investigated.•We calculated the total mass attenuation coefficients by using WinXCom program.•The values of effective atomic number and electron density are also calculated.•All parameters depend on chemical content and the incident photon energy.•The Field castable Heat Resistant is the most effective shielding material. Annals of Nuclear Energy Elsevier http://www.deepdyve.com/lp/elsevier/determination-of-total-mass-attenuation-coefficients-effective-atomic-ySVP7mAj4o. Abstract The mass attenuation coefficients for compounds of biomedically important some elements (Na, Mg, Al, Ca, and Fe) have been measured by using an extremely narrow collimated-beam transmission method in the energy 59.5 keV. Total electronic, atomic, and molecular cross sections, effective atomic numbers, and electron densities have been obtained by using these results. Gamma-rays of 241Am passed through compounds have been detected by a high-resolution Si(Li) detector and by using energy dispersive X-ray fluorescence spectrometer (EDXRF). Obtained results have been compared with theoretically calculated values of WinXCom and FFAST. The relative difference between the experimental and theoretical values are −9.4% to +11.9% with WinXCom and −11.8% to +11.7% FFAST. Results have been presented and discussed in this paper. Accepted: 29 August 2016 Abstract In this work, linear and mass attenuation coefficients, half and tenth-value layers, effective atomic number and electron density of different types of concretes were determined at 316.51, 468.07, 511, 662, 1173 and 1332 keV using MCNP-4C code and WinXCom programs. The MCNP-4C and WinXCom results agreed well with each other, with differences of. NXcom – A program for calculating attenuation coefficients of fast neutrons and gamma-rays NXcom – A program for calculating attenuation coefficients of fast neutrons and gamma-rays El-Khayatt, A.M. 2011-01-01 00:00:00 This work is concerned with a construction and use of NXcom computer program for calculating the removal and attenuation coefficients of transmitted fast neutrons and γ-rays, respectively, through mixtures, composites, concretes and compounds. The program uses only one input data file for neutrons and γ-rays calculations. 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 shielding mixed neutron and γ-rays. The obtained values for Σ R using the program and the reported attenuation thicknesses which were based on the Monte Carlo N-Particle (MCNP) code showed the same trend. The NXcom program can be used as a preliminary effective tool for testing the shielding material against fast neutrons and γ-rays. Annals of Nuclear Energy Elsevier http://www.deepdyve.com/lp/elsevier/nxcom-a-program-for-calculating-attenuation-coefficients-of-fast-nFwyvTvnLl. Abstract This work is concerned with a construction and use of NXcom computer program for calculating the removal and attenuation coefficients of transmitted fast neutrons and γ-rays, respectively, through mixtures, composites, concretes and compounds. The program uses only one input data file for neutrons and γ-rays calculations. 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 shielding mixed neutron and γ-rays. The obtained values for Σ R using the program and the reported attenuation thicknesses which were based on the Monte Carlo N-Particle (MCNP) code showed the same trend. The NXcom program can be used as a preliminary effective tool for testing the shielding material against fast neutrons and γ-rays. Journal Annals of Nuclear Energy – Elsevier Published: Jan 1, 2011.
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