10 CFR 35.647, Additional Technical Requirements for Mobile Remote Afterloader Units
Additional technical requirements for mobile remote afterloader units
a
(a) A licensee providing mobile remote afterloader service shall--
- (1) Check survey instruments before medical use at each address of use or on each day of use, whichever is more frequent; and
- (2) Account for all sources before departure from a client's address of use.
b
(b) In addition to the periodic spot-checks required by § 35.643, a licensee authorized to use mobile afterloaders for medical use shall perform checks on each remote afterloader unit before use at each address of use. At a minimum, checks must be made to verify the operation of--
- (1) Electrical interlocks on treatment area access points;
- (2) Source exposure indicator lights on the remote afterloader unit, on the control console, and in the facility;
- (3) Viewing and intercom systems;
- (4) Applicators, source transfer tubes, and transfer tube-applicator interfaces;
- (5) Radiation monitors used to indicate room exposures;
- (6) Source positioning (accuracy); and
- (7) Radiation monitors used to indicate whether the source has returned to a safe shielded position.
c
(c) In addition to the requirements for checks in paragraph (b) of this section, a licensee shall ensure overall proper operation of the remote afterloader unit by conducting a simulated cycle of treatment before use at each address of use.
d
(d) If the results of the checks required in paragraph (b) of this section 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.
e
(e) A licensee shall retain a record of each check required by paragraph (b) of this section in accordance with § 35.2647.
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