Ariz. Admin. Code § R9-7-738 - Periodic Spot-checks for Remote Afterloader Units
A. A licensee authorized to use a remote
afterloader unit for medical use shall perform spot-checks of each remote
afterloader facility and on each unit:
1.
Before the first use of a high dose-rate, medium dose-rate, or pulsed dose-rate
remote afterloader unit on a given day;
2. Before each patient treatment with a low
dose-rate remote afterloader unit; and
3. After each source installation.
B. A licensee shall perform the
measurements required by subsection (A) in accordance with written procedures
established by an authorized medical physicist. That individual need not
actually perform the spot-check measurements.
C. A licensee shall have an authorized
medical physicist review the results of each spot-check within 15 days. The
authorized medical physicist shall notify the licensee as soon as possible in
writing of the results of each spot-check.
D. To satisfy the requirements of subsection
(A), spot-checks shall, at a minimum, assure proper operation of:
1. Electrical interlocks at each remote
afterloader unit room entrance;
2.
Source exposure indicator lights on the remote after-loader unit, on the
control console, and in the facility;
3. Viewing and intercom systems in each high
dose-rate, medium dose-rate, and pulsed dose-rate remote after-loader
facility;
4. Emergency response
equipment;
5. Radiation monitors
used to indicate the source position;
6. Timer accuracy;
7. Clock (date and time) in the unit's
computer; and
8. Decayed source
activity in the unit's computer.
E. If the results of the checks required in
subsection (D) indicate the malfunction of any system, a licensee shall lock
the control console in the off position and not use the unit except as may be
necessary to repair, replace, or check the malfunctioning system.
F. A licensee shall retain a record of each
spot-check required by subsections (A) and (D) for three years from the date of
the procedure, and a copy of the procedures required by subsection (B) until
licensee terminates all medical activities involving the afterloader
unit.
Notes
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