Minnesota Administrative Rules
Agency 144 - Health Department
Chapter 4731 - RADIATION SAFETY
MEDICAL USE OF RADIOACTIVE MATERIAL
Part 4731.4420 - MEASURING ACTIVITY OF UNSEALED RADIOACTIVE MATERIAL; INSTRUMENTS REQUIRED

Universal Citation: MN Rules 4731.4420

Current through Register Vol. 49, No. 13, September 23, 2024

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.

Statutory Authority: MS s 144.1202; 144.1203

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