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Objective: To evaluate the low melting-point MCP-69, MCP-96, MCP-137, and MCP-200 alloys, and characterize them for their potential to protect from the harms associated with radiation and eliminate radiation hazards during radiological procedures and treatment of cancer. Methods: The Klein-Nishina formula was used to calculate the electronic and atomic cross-sections of these alloys using photon beams with energies 4, 6, 9, 12, and 18 ​MeV. Energy transfer coefficients, Compton mass attenuation coefficient, mass-energy transfer coefficient, and recoil energy of electrons in the specific photon energies of 4–18 ​MeV were calculated. The alloys' effective charge number and the photon energy were key factors in determining the properties found by utilizing the Klein-Nishina formula and Compton effects. Results: The cross sections and energy transfer coefficients increased with the increasing effective charge number Z of the alloys and decreased as the photon energy increased. The Compton recoil of the ejected electrons was observed to have a direct relationship with photon energy, but mass-energy transfer decreased with increasing photon energy. These alloys can replace the toxic lead for environmentally cleaned radiation applications. Conclusions: These calculations and characteristics of the MCP alloys can help further determine their viability as materials for radiation shielding, their use in safe cancer diagnosis, treatment, and environmental hazards protection.