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    A new software for calculating the differential scattering parameters for radiation applications: DSPCal
    (Taylor & Francis Ltd, 2025) Buyukyildiz, M.; Aydinbakar, L.; Sayyed, M. I.; Levet, A.
    This study aimed to develop a new software tool, called Differential Scattering Parameters Calculator (DSPCal), to calculate differential scattering parameters for a wide range of materials, spanning various energies and scattering angles. The program was developed to calculate differential cross sections and total molecular mass differential scattering coefficients (TMMDSC). The objective was to provide a user-friendly tool to easily determine the TMMDSC at any desired energy and angle in the continuous photon energy, scattering angle or momentum transfer region. The DSPCal program was developed using the Python programming language and employs the principles of differential scattering parameters. The program was tested on different materials and showed good agreement with the available literature results. Specifically, for compounds like Water, Glycerol and Fe2O3, the differences between program results and other results from the literature were found to be <= 0.00%, <= 0.00% and <= 0.86% respectively. These results indicate that the program is reliable and accurate in calculating the differential scattering parameters for a wide range of materials. The program is available for free and can be useful in various fields that utilize nuclear radiation for different purposes, including diagnostic, therapeutic, imaging, and materials design for radiation shielding. The accuracy and reliability of the program were demonstrated through comparisons with available literature results, indicating its potential as a valuable tool for researchers in the field of nuclear radiation. The source code of DSPCal will be maintained at.
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    The differential scattering parameters of different types of materials in Compton energy region for nuclear applications
    (Springer Heidelberg, 2022) Buyukyildiz, M.; Tuna, G.; Kurudirek, M.
    Linear attenuation coefficient, mass attenuation coefficient, differential scattering cross sections, effective atomic number (Z(eff)), effective electron density are the parameters used to determine interaction of X-/gamma rays with any material. These parameters depend on photon energy and chemical composition of the studied material. The scattering process is a convenient method for material characterization as it contains less doses than transmission. In the present study, a theoretical estimation based on the scattering of radiation was used to calculate total molecular mass differential scattering coefficients (TMMDSC) of different types of materials for Cs-137 and Co-60 radioisotopes covering Compton energy region and for varying scattering angles. For this aim, differential Compton and Rayleigh scattering cross sections (based on Klein-Nishina and Thomson formula) were used for different momentum transfer values. Using the data obtained, practical fit equations were determined to calculate Klein-Nishina and Thomson cross sections for studied momentum transfer range. Using these equations TMMDSC of any material can be easily estimated. Furthermore, Z(eff)s of the selected materials were studied in the same momentum transfer range based on Rayleigh to Compton scattering ratio for the first time. Values of Z(eff), which is one of the most important parameter to distinguish or identify multi-element materials, was compared to those of mean atomic numbers and it was found that the relative differences can reach up to 76.54%.