OAR 333-116-0165: Possession, Use Calibration, and Check of Instruments to Measure Dosages of Alpha- or Beta-emitting Radionuclides

(1) For other than unit dosages, a licensee must possess and use instrumentation to measure the radioactivity of alpha- or beta-emitting radionuclides. A licensee must measure, by direct measurement or by combination of measurements and calculations, the amount of radioactivity in dosages of alpha- or beta-emitting radionuclides prior to administration to each patient or human research subject. (2) A licensee must develop, implement, and maintain written procedures for use of the instrumentation. At a minimum, a licensee must: (a) Perform tests before initial use, and following repair, on each instrument for accuracy, linearity, and geometry dependence, unless it is not appropriate for the use of the instrument; and make adjustments when necessary; (b) Perform accuracy annually; (c) Perform linearity tests annually over the range of medical use; and (d) Check each instrument for constancy and proper operation at the beginning of each day of use. (3) Accuracy tests must be performed with source(s) that are traceable to National Institute of Standards and Technology (NIST) or by a supplier who has compared the source to a source that was calibrated by NIST. (4) A licensee must retain a record of each check and test required by this rule in accordance with OAR 333-100-0057.