180 NAC 7-079. ADDITIONAL TECHNICAL REQUIREMENTS FOR MOBILE REMOTE AFTERLOADER UNITS

079. ADDITIONAL TECHNICAL REQUIREMENTS FOR MOBILE REMOTE AFTERLOADER UNITS. 079.01 BEFORE MEDICAL USE. A licensee providing mobile remote afterloader service must: (A) Check survey instruments for consistent response before medical use at each address of use or on each day of use, whichever is more frequent; and(B) Account for all sources before departure from a client's address of use. 079.02 AT EACH ADDRESS OF USE. In addition to the periodic spot-checks required by 180 NAC 7-077 a licensee authorized to use mobile afterloaders for medical use must 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: (A) Electrical interlocks on treatment area access points;(B) Source exposure indicator lights on the remote afterloader unit, on the control console, and in the facility;(C) Viewing and intercom systems;(D) Applicators, source transfer tubes, and transfer tube-applicator interfaces;(E) Radiation monitors used to indicate room exposures;(F) Source positioning accuracy; and(G) Radiation monitors used to indicate whether the source has returned to a safe shielded position. 079.03 SIMULATED CYCLE OF TREATMENT. In addition to the requirements for checks 180 NAC 7-079.02, a licensee must ensure overall proper operation of the remote afterloader unit by conducting a simulated cycle of treatment before use at each address of use. 079.04 SYSTEM MALFUNCTION. If the results of the checks required in 180 NAC 7-079.02 indicate the malfunction of any system, a licensee must lock the control console in the off position and not use the unit unless necessary to repair, replace, or check the malfunctioning system. 079.05 RECORDS. A licensee must retain a record of each check required by 180 NAC 7-079.02 according to 180 NAC 7-112.