Ariz. Admin. Code § R9-7-733 - Dosimetry Equipment
A. Except
for low dose-rate remote afterloader sources where the source output or
activity is determined by the manufacturer, a licensee shall have a calibrated
dosimetry system available for use. To satisfy this requirement, one of the
following two conditions shall be met.
1. The
system shall have been calibrated using a system or source traceable to the
National Institute of Science and Technology (NIST) and published protocols
accepted by nationally recognized bodies; or by a calibration laboratory
accredited by the American Association of Physicists in Medicine (AAPM). The
calibration shall have been performed within the previous two years and after
any servicing that may have affected system calibration; or
2. The system shall have been calibrated
within the previous four years. Eighteen to 30 months after that calibration,
the system shall have been intercompared with another dosimetry system that was
calibrated within the past 24 months by NIST or by a calibration laboratory
accredited by the AAPM. The results of the intercomparison shall indicate that
the calibration factor of the licensee's system had not changed by more than
two percent. The licensee may not use the intercomparison result to change the
calibration factor. When intercomparing dosimetry systems to be used for
calibrating sealed sources for therapeutic units, the licensee shall use a
comparable unit with beam attenuators or collimators, as applicable, and
sources of the same radionuclide as the source used at the licensee's
facility.
B. The
licensee shall have a dosimetry system available for use for spot-check output
measurements, if applicable. To satisfy this requirement, the system may be
compared with a system that has been calibrated in accordance with subsection
(A). This comparison shall have been performed within the previous year and
after each servicing that may have affected system calibration. The spot-check
system may be the same system used to meet the requirement in subsection
(A).
C. The licensee shall retain,
for three years from the date of the procedure, a record of each calibration,
intercomparison, and comparison.
Notes
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