New York Codes, Rules and Regulations
Title 10 - DEPARTMENT OF HEALTH
Chapter I - State Sanitary Code
Part 16 - Ionizing Radiation
Radiation Equipment
Section 16.54 - Veterinary radiographic and fluoroscopic installations

(i) The protective tube housing shall be of diagnostic type.

(ii) Collimating devices capable of restricting the useful beam to the area of clinical interest shall be used and shall provide the same degree of protection as is required of the tube housing.

(iii) The X-ray films used as the recording medium during the X-ray examination shall show substantial evidence of cut-off (beam delineation).

(iv) The aluminum equivalent of the total filtration in the useful beam shall not be less than that shown below:

(v) A device shall be provided which terminates the exposure after a preset time interval or exposure. The exposure switch shall be of the dead-man type and shall be so arranged that it cannot be operated outside a shielded area.

(i) Control apparatus for the radiographic equipment shall be located in in an adjacent room or in a fixed booth within the same room provided such booth is composed of radiation shielding to a minimum height of seven feet. The control booth either shall be so arranged that the radiation has to be scattered at least twice before entering the booth, or shall be provided with a protective door that is interlocked in such a way that the X-ray tube(s) cannot be energized unless the door is in the closed position.

(ii) The operator shall be able to see the animal patient by means of a mirror or through a window of lead equivalent sufficient for the required protection and so placed that the operator is always in a shielded position.

(i) Only persons required for the X-ray procedure shall be in the X-ray room during the exposures.

(ii) When an animal patient must be held in position during exposures, mechanical supporting or restraining devices shall be used. Animal patients or films shall be held only under extreme conditions when clinically necessary. Individuals holding animal patients or films shall wear protective gloves having at least 0.5 mm lead equivalent, a protective apron of at least 0.25 mm lead equivalent, and shall keep all parts of his/her body out of the useful beam. The exposure of any individual used for holding animals shall be monitored. Pregnant women and persons under 18 years of age shall not hold animal patients or films under any conditions.

(i) The protective tube housing shall be of diagnostic type.

(ii) Collimating devices capable of restricting the useful beam to the area of clinical interest shall be used and shall provide the same degree of protection as is required of the tube housing.

(iii) The X-ray film used as the recording medium during the X-ray examination shall show evidence of cut-off (beam delineation).

(iv) The aluminum equivalent of the total filtration in the useful beam shall not be less than that shown below:

(v) A device shall be provided which terminates the exposure after a preset time interval or exposure.

(vi) A dead-man type of exposure switch shall be provided with a cord sufficiently long so that the operator can stand at least six feet from the animal patient, the X-ray tube, and the useful beam.

(i) No person shall be regularly employed to support or hold animals or film during X-ray exposures.

(ii) When an animal must be held in position during exposures, mechanical supporting or restraining devices shall be used. Individuals should hold animals only when clinically necessary under extreme conditions. Such individuals shall wear protective gloves having at least 0.5 mm lead equivalent, a protective apron of at least 0.25 mm lead equivalent, and shall keep all parts of his body out of the useful beam. The exposure of any individual used for holding animals shall be monitored. Fertile women and individuals under 18 years of age shall not hold animals under any conditions.

(i) The protective tube housing shall be of diagnostic type.

(ii) Equipment shall be so constructed that the entire cross section of the useful beam is always intercepted by a primary protective barrier (usually a lead glass screen or image intensifier assembly) irrespective of the panel screen distance. For conventional fluoroscopes, this requirement may be assumed to have been met if, when the collimating system is opened to its fullest extent, an unilluminated margin is left on all edges of the fluorescent screen regardless of the position of the screen during use.

(iii) The aluminum equivalent of the total filtration in the useful beam shall not be less than that shown below:

(iv) The fluoroscopic exposure switch shall be of the dead-man type.

(v) Mobile fluoroscopic equipment is subject to the following additional requirements:

(i) Protective gloves and aprons of at least 0.25 mm lead equivalent each shall be made available and shall be worn by the fluoroscopist during every examination.

(ii) Unless measurements indicate that they are not needed protective gloves and protective aprons of at least 0.25 mm lead equivalent each shall be worn by the physician, nurse, technician and all other persons within the fluoroscopic room.

(iii) Only persons needed in the fluoroscopic room shall be present during the exposure.

(iv) The fluoroscopic room shall be free of extraneous light that interferes with the examination.