Inverse distance squared formulas remain unchanged. Inverse distance squared is applicable for shadow area and shadow density. Gravitational shadowing shows a limit and topical variations. Gravity shows total shielding on large planets only. Radiation manifests an Inertial and EM spectrum.
Nuclear shielding occurs for all nuclei.
Nuclear shielding replaces mass conversion. Electrons and ions interact with the EM spectrum and the Inertial spectrum. Inertia is due to the Doppler effect and photon characteristics. Magnetic lines are a form of matter. Molar heat capacity and Avogadro's hypothesis support the heat shell model of heat.