Radiation Safety


Exposure to sufficient quantities of ionizing radiation from radioactive nuclear substances can pose a risk of adverse health effects.

All University employees and students involved with the use of nuclear substances (open and sealed source radioactive nuclides) and radiation devices (instruments containing sealed nuclear sources) are required to follow established procedures for the possession, safe use, transfer and disposal of these substances and devices.


All radioactive nuclear substances must be handled and disposed of in accordance with the conditions of the UNB Licence(s) as instituted by the Canadian Nuclear Safety Commission (CNSC). The CNSC is a federal regulatory agency with responsibility for radiation safety and ensures that the use of nuclear substances does not pose undue risk to health, safety and security of the public, or the environment. The CNSC operates under the authority of the Nuclear Safety and Control Act (1997). The CNSC recommends that radiation dose levels be kept as low as reasonably achievable (ALARA Principle) and below the allowed exposure limits. The CNSC replaces the former Atomic Energy Control Board (AECB).

Policy and Procedure

Please see Policy and Procedure number 7836 entitled Radioactive Nuclear Substances in the UNB Safety Handbook.