Minn. R. agency 144, ch. 4731, MEDICAL USE OF RADIOACTIVE MATERIAL, pt. 4731.4420

Current through Register Vol. 49, No. 29, 2025
Part 4731.4420 - MEASURING ACTIVITY OF UNSEALED RADIOACTIVE MATERIAL; INSTRUMENTS REQUIRED
A. For direct measurements performed according to part 4731.4422, a licensee must possess and use instrumentation to measure the activity of unsealed radioactive material before it is administered to a patient or human research subject.
B. A licensee must check and test the instrumentation required under item A according to nationally recognized standards or the manufacturer's instructions and at the following intervals as applicable:
(1) check each instrument for constancy at the beginning of each day of use;
(2) test each instrument for linearity upon installation and at intervals not to exceed three months thereafter;
(3) test each instrument for accuracy upon installation and at intervals not to exceed 12 months thereafter; and
(4) test each instrument for geometry dependence upon installation.
C. A licensee must also perform the required checks and tests in this part following adjustment or repair of the instrument.
D. The licensee must keep a record of geometry dependence for the duration of the use of the instrument and must retain a record of all other instrument checks and tests for three years. The records must include:
(1) the model and serial number of the instrument;
(2) the date of the check or test;
(3) the results of the check or test; and
(4) the name of the individual performing the check or test.

Minn. R. agency 144, ch. 4731, MEDICAL USE OF RADIOACTIVE MATERIAL, pt. 4731.4420

29 SR 755; 33 SR 1440

Statutory Authority: MS s 144.1202; 144.1203