§ 227a.15. Surveys.
(a) General rule. Radiation surveys of all radiation-producing devices must be sufficient to show compliance under § 219.51 (relating to radiation dose limits for individual members of the public) and to show compliance with radiation emission requirements of this chapter. The radiation surveys must be sufficient to evaluate the magnitude and extent of radiation emissions and the potential radiological hazards that could be present. Records of these surveys must be maintained for 5 years for inspection by the Department. At a minimum, surveys shall be performed in the following instances:
(1) Upon installation of the equipment and at least once every 12 months thereafter.
(2) Following a change in the initial arrangement, number or type of local components in the system, and prior to returning to service.
(3) Following maintenance requiring the disassembly, removal or repair of a local component in the system, and prior to returning to service.
(4) During the performance of maintenance, calibration and another procedure if the procedure requires the presence of a primary beam while any local component in the system is disassembled or removed.
(5) Following bypass of a safety device or interlock as required by § 227a.18(b) (relating to operating requirements).
(6) When a visual inspection of the local components in the system reveals an abnormal condition.
(7) If a personnel monitoring device shows a radiation exposure that is greater than 25% of the annual occupational dose limit as specified in 10 CFR 20.1201 (relating to occupational dose limits for adults).
(b) Instrument requirements. The registrant shall have access to sufficiently calibrated, appropriate and operable radiation survey instruments to make physical radiation surveys as required by this chapter. The instruments must be capable of detecting and measuring the types and levels of radiation involved, including primary, scattered and leakage radiation.
(c) Maintenance and calibration. The registrant shall ensure the maintenance and calibration of all monitoring and survey instruments under 10 CFR 20.1501 (relating to general).
(d) Exception. Radiation surveys are not required if a registrant otherwise demonstrates compliance under this chapter to the satisfaction of the Department.
Cross References This section cited in 25 Pa. Code § 227a.18 (relating to operating requirements).
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