Other actinium-225, actinium-227, californium-253, curium-240, curium-241, curium-242, curium-243, curium-244, curium-253, curium-254, gadolinium-148, polonium-208, polonium-209, polonium-210, uranium-230 or uranium-232 and their compounds, as well as other radium-223 compounds; Alloys, dispersions (including metal ceramics), ceramic products, and mixtures containing these elements and their compounds