Radiation Safety Practice Exam

What kind of radiation does tritium emit?

1. Alpha radiation

2. Low-energy beta radiation

3. Gamma radiation

4. X-rays

The correct answer is: Low-energy beta radiation

Tritium, which is a radioactive isotope of hydrogen, primarily emits low-energy beta radiation during its decay process. This type of radiation occurs when a neutron in the tritium nucleus is converted into a proton, resulting in the release of a beta particle (an electron) and an antineutrino. The key aspect of beta radiation is that it has a relatively low penetration power compared to other types of radiation, such as alpha particles or gamma rays. This means that low-energy beta particles can be stopped by materials like plastic or glass, making them generally less hazardous in terms of external exposure. However, if tritium is ingested or inhaled, the emitted beta particles can interact with biological tissues, which is a crucial consideration in radiation safety protocols. Understanding the emission characteristics of tritium is essential for handling and storing it safely, as it informs the necessary precautions and protective measures in environments where tritium is present.