OAR 333-106-0601: Veterinary X-ray Systems: Veterinary Medicine Radiographic Installations Additional Requirements

(1) Equipment: (a) The protective tube housing shall be of the diagnostic type; (b) Collimating devices shall be provided and used for collimating the useful beam to the area of clinical interest; (c) All X-ray equipment sold after October 1991 must be equipped with a variable adjustable collimator and beam-defining light that meets all of the requirements of OAR 333-106-0301(1), (2) and (3); (d) The total filtration permanently in the useful beam shall not be less than 0.5 mm Al equivalent for machines operating up to 50 kVp, 1.5 mm Al equivalent for machines operating between 50 and 70 kVp, and 2.5 mm Al equivalent for machines operating above 70 kVp; (e) A device shall be provided to terminate the exposure after a preset time or exposure; (f) A dead-man type of exposure switch shall be provided, together with an electrical cord of sufficient length, so that the operator can stand out of the useful beam and at least 12 feet (3.66 m) from the animal during all X-ray exposures. (2) Structural Shielding: All wall, ceiling and floor areas shall be equivalent to or provided with applicable protective barriers to assure compliance with division 120. (3) Operating Procedures: (a) All individuals shall stand well away from the useful beam and the animal during radiographic exposures; (b) No individual shall be in the X-ray room while exposures are being made unless such individual's assistance is required; (c) When an animal must be held in position during radiography, mechanical supporting or restraining devices shall be available and used as appropriate. (d) If the animal must be held by an individual, the individual shall: (A) Be protected with appropriate shielding devices such as protective gloves, aprons, and thyroid collars; (B) Have no part of an individual’s body be struck by the useful beam of the X-ray; and (C) Ensure that the individual holding the animal is appropriately monitored with the monitoring device being affixed to the outside of their apron, from collar to chest.