NAC459.614. Veterinary medicine radiographic installations.

     1. The protective tube housing must be of the diagnostic type.

     2. Diaphragms or cones must be provided for collimating the useful beam to the area of clinical interest and must provide the same degree of protection as is required of the housing.

     3. The total filtration permanently in the useful beam must not be less than 0.5 millimeters aluminum equivalent for machines operating up to 50 kVp, 1.5 millimeters aluminum equivalent for machines operating between 50-70 kVp, and 2.5 millimeters aluminum equivalent for machines operating above 70 kVp.

     4. A device must be provided to terminate the exposure after a preset time or exposure.

     5. A dead-man type of exposure switch must be provided together with an electrical cord of sufficient length so that the operator can stand out of the useful beam and at least 6 feet from the animal during all X-ray exposures.

     6. All wall, ceiling and floor areas must be equivalent to or provided with applicable protective barriers as required in NAC 459.325, 459.331 and 459.335.

     7. The operator shall stand well away from the useful beam and the animal during radiographic exposures.

     8. No person other than the operator may be in the X-ray room while exposures are being made unless the person’s assistance is required.

     9. When an animal must be held in position during radiography, mechanical supporting or restraining devices should be used. If the animal must be held by a person, the person must be protected with appropriate shielding devices, such as protective gloves and apron, and he or she must be positioned so that no part of his or her body will be struck by the useful beam. The exposure of any person used for this purpose must be monitored and permanently recorded.

     [Bd. of Health, Radiation Control Reg. §§ 6.10-6.10.3.3, eff. 2-28-80]—(NAC A 1-18-94)