This information is used for your permanent dosimetry records. External dosimetry is inefficient for monitoring laboratory personnel. No external monitoring is required for personnel using only radionuclides that produce low-energy radiations.
External monitoring is effective for high-activity protocols only.
If you are using less than 10 mCi per protocol, personnel monitoring is generally not needed. Laboratories utilizing less than 5 mCi are not required to use personnel monitoring. Clinics or laboratories performing x-ray fluoroscopy must wear a collar film badge and protective lead apron. Personnel working within Environmental Health and Safety are required to use personnel monitoring. You will be issued a quarterly whole-body badge i.