3. Radioactive Waste
- Short-lived isotopes (half-life less than 90 days)
- Liquid waste – store in lab for 10 half-lives, then waste is no longer radioactive
- Solid waste – deposit in plexiglass container, hold for 10 half-lives, then waste is no longer radioactive
- Long-lived isotopes (half-life greater than 90 days)
- Contact the Radiation Safety Officer (RSO) for instructions