Page 917 - Radiation Safety

Work Procedures for Unsealed Sources
Work Procedures for Unsealed Sources

• Radioactive gases

 Radioactive gases can cause internal radiation exposure. The use of

proper ventilation system with continuous monitoring of discharge
must be installed in facility using radioactive gases.

 Vertical laminar flow may be considered for use in handling radioactive
gases, but care must be taken to prevent air turbulence in the hood.

 All exhaust system related to possible discharge of radionulide outside

the working must be strictly monitored and controlled. No release of
radioactive materials for disposal, recycling or reuse is allowed without

prior written approval of the appropriate authority.