Kentucky Administrative Regulations › Title 902 - CABINET FOR HEALTH AND FAMILY SERVICES - DEPARTMENT FOR PUBLIC HEALTH › Chapter 100 - Radiology › Section 902 KAR 100:150 - Microscopic analytic x-ray

Current through Register Vol. 51, No. 1, July 1, 2024
RELATES TO: KRS 211.842-211.852,
				211.990(4)
NECESSITY, FUNCTION, AND CONFORMITY: The Cabinet for Human
				Resources is authorized by
				KRS
				211.844 to provide by regulation for the
				possession or use of sources of ionizing or electronic product radiation and to
				regulate the handling and disposal of radioactive waste. The purpose of this
				administrative regulation is to provide radiation safety requirements for
				microscopic analytical x-ray equipment and operation.
Section 1. Applicability. The requirements in
			 this administrative regulation shall apply to the use of microscopic analytical
			 x-ray machines. The provisions of this administrative regulation are in
			 addition to, and not in substitution for, other applicable provisions for these
			 administrative regulations.
Section
			 2. Equipment.
(1) A label bearing
			 essentially the words "CAUTION - RADIATION - THIS EQUIPMENT PRODUCES RADIATION
			 WHEN ENERGIZED" shall be placed near a switch which energizes a tube. Labels
			 shall use the conventional colors (magenta or purple on yellow background) and
			 bear the conventional radiation symbol.
(2) A sign bearing the words "CAUTION - HIGH
			 INTENSITY X-RAY BEAM" shall be placed in the area immediately adjacent to each
			 tube housing. The sign shall be so located that it is clearly visible to a
			 person operating, aligning or adjusting the unit or handling or changing a
			 sample.
(3) An apparatus utilized
			 in beam alignment procedures shall be designed in a way that excessive
			 radiation shall not strike the operator. Particular attention shall be given to
			 viewing devices, in order to ascertain that lenses and other transparent
			 components attenuate the beam to an acceptable level.
(4) Open beam configurations shall be
			 provided with a readily discernible indication of:
(a) X-ray tube "on-off" status located near
			 the radiation source housing, if the primary beam is controlled in this manner;
			 or
(b) Shutter "open-closed" status
			 located near each port on the radiation source housing, if the primary beam is
			 controlled in this manner.
(c)
			 Warning devices shall be labeled so their purpose is easily identified. On
			 equipment installed after July, 1986, warning devices shall have fail-safe
			 characteristics.
(5) A
			 device which prevents entry or a portion of an individual's body into the
			 primary beam or causes the primary beam to be shut off, shall be provided on
			 open-beam configurations. A registrant may apply to the cabinet for an
			 exemption from the requirement of a safety device. The application shall
			 include:
(a) A description of the various
			 safety devices that have been evaluated;
(b) The reason each evaluated device cannot
			 be used; and
(c) A description of
			 the alternative methods that are to be employed to minimize the possibility of
			 an accidental exposure, including procedures to assure that operators and
			 others in the area are informed of the absence of safety devices.
(6) If a shutter mechanism is used
			 to control the primary beam, a shutter status (open or closed) indication shall
			 be provided in the area adjacent to the tube head so that the position of the
			 shutter is readily discernible.
(7)
			 If an interlock device turns off the x-ray beam, it shall not be possible to
			 resume operation without resetting the beam "ON" switch at the control
			 panel.
(8) The tube housing leakage
			 radiation at a distance of five (5) centimeters from accessible points on the
			 surface of the tube housing shall not exceed two and five-tenths (2.5) mR per
			 hour at each maximum specified tube rating. This measurement shall be made with
			 a monitoring instrument appropriate for the energy range generated by the x-ray
			 equipment, and shall be made with beam ports blocked off.
(9) Unused ports on radiation source housings
			 shall be secured in the closed position in a manner which prevents casual
			 opening.
(10) On open-beam
			 configurations installed after July 1, 1986, each port on the radiation source
			 housing shall be equipped with a shutter that cannot be opened unless a
			 collimator or a coupling has been connected to the port.