Utah Administrative Code
Topic - Environmental Quality
Title R313 - Waste Management and Radiation Control, Radiation
Rule R313-35 - Requirements for X-Ray Equipment Used for Non-Medical Applications
Section R313-35-110 - Veterinary X-Ray Systems
Universal Citation: UT Admin Code R 313-35-110
Current through Bulletin 2024-06, March 15, 2024
(1) Equipment. X-ray systems shall meet the following standards to be used for veterinary radiographic examinations.
(a) The leakage
radiation from the diagnostic source assembly measured at a distance of one
meter shall not exceed 25.8 uC/kg (100 milliroentgens) in one hour when the
x-ray tube is operated at its leakage technique factors.
(b) Diaphragms, cones, or a stepless
adjustable collimator shall be provided for collimating the useful beam to the
area of clinical interest and shall provide the same degree of protection as is
required of the diagnostic source housing.
(c) A device shall be provided to terminate
the exposure after a preset time or exposure.
(d) A "dead-man type" exposure switch shall
be provided, together with an electrical cord of sufficient length, so that the
operator may stand out of the useful beam and at least six feet from the animal
during x-ray exposures.
(e) For
stationary or mobile x-ray systems, a method shall be provided for visually
defining the perimeter of the x-ray field. The total misalignment of the edges
of the visually defined field with the respective edges of the x-ray field
along either the length or width of the visually defined field shall not exceed
six percent of the distance from the source to the center of the visually
defined field when the surface upon which it appears is perpendicular to the
axis of the x-ray beam.
(f) For
portable x-ray systems, a method shall be provided to align the center of the
x-ray field with respect to the center of the image receptor to within six
percent of the source to image receptor distance, and to indicate the source to
image receptor distance to within six percent.
(2) Structural shielding. For stationary x-ray systems, the wall, ceiling, and floor areas shall provide enough shielding to meet the requirements of R313-15-301.
(3) Operating procedures.
(a) Where feasible, the operator shall stand
well away from the useful beam and the animal during radiographic
exposures.
(b) In applications in
which the operator is not located beyond a protective barrier, clothing
consisting of a protective apron having a lead equivalent of not less than 0.5
millimeters shall be worn by the operator and other individuals in the room
during exposures.
(c) An individual
other than the operator shall not be in the x-ray room while exposures are
being made unless the individual's assistance is required.
(d) If the animal must be held by an
individual, that individual shall be protected with appropriate shielding
devices, for example, protective gloves and apron. The individual shall be so
positioned that no unshielded part of that individual's body will be struck by
the useful beam.
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