WAC 246-230-070. Radiation surveys

(1) Radiation surveys must be conducted by a qualified expert to verify: (a) Dose of radiation per screening and maximum allowable scans per year for any individual at stated dosage per screening; (b) Radiation leakage at the surface, within radiation screening zone, at operator position, and surrounding areas. If the radiation survey conducted by a qualified expert indicates the operators could receive 10 percent of the occupational worker's annual dose limit of 5 rem, a dosimetry badge shall be worn while within the radiation screening zone; (c) Safety interlocks are functioning properly; (d) Operation and emergency procedures are in place and used as appropriate; (e) Training program and training log are in place and used as appropriate; and (f) Any other parameters specified by the manufacturer. (2) The registrant must ensure that radiation surveys are completed: (a) Prior to first use and upon replacement of security screening system; (b) Every 10 to 14 months; (c) Within 30 days following any maintenance that affects: (i) Radiation shielding; (ii) Shutter mechanism; (iii) Radiation production components; and (d) Within 30 days following any alteration or incident that may have damaged the system in a way that unintended radiation emission occurs. (3) A qualified expert will provide a summary of each radiation survey to the registrant, outlining results and recommendations for corrections. Corrections must be made within 30 days of receiving the recommendations.