What type of irradiator is tritium classified as?

Tritium is classified as a whole body irradiator because it primarily emits beta radiation, which can be absorbed through biological tissues. Whole body irradiators are responsible for exposing the entire body to radiation rather than just localized areas. In the case of tritium, since it can distribute throughout the body due to its elimination through biological processes, it affects a broad area rather than being restricted to a specific site.

This classification is important for safety protocols and understanding the risks associated with exposure to radioactive materials like tritium, which is commonly used in certain types of self-luminous devices, such as exit signs and watch dials. Proper handling and regulatory measures are essential to mitigate any potential health impacts from whole body irradiation.