Kentucky Administrative Regulations › Title 902 - CABINET FOR HEALTH AND FAMILY SERVICES - DEPARTMENT FOR PUBLIC HEALTH › Chapter 100 - Radiology › Section 902 KAR 100:155 - Particle accelerator

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 administrative
				regulation for the registration and licensing of the possession or use of
				sources of ionizing or electronic product radiation and the handling and
				disposal of radioactive waste. The purpose of this administrative regulation is
				to provide radiation safety requirements for particle accelerator
				operations.
Section 1. Applicability.
			 The requirements in this administrative regulation apply to the use of particle
			 accelerators by persons registering the machines under the provisions of these
			 administrative regulations. The requirements of this administrative regulation
			 are in addition to, and not in substitution for, other applicable provisions of
			 these administrative regulations.
Section
			 2. Equipment.
(1) A label bearing
			 essentially the words "CAUTION - RADIATION - THIS MACHINE PRODUCES RADIATION
			 WHEN ENERGIZED" shall be placed near switches which energize portions of the
			 machine. Labels shall use the conventional colors (magenta or purple on yellow
			 background) and bear the conventional radiation symbol.
(2) Apparatus utilized in beam alignment
			 procedures shall be designed in a way that radiation greater than limits
			 prescribed in 902 KAR 100:020 shall not strike the operator.
(3) A switch or device which may cause the
			 radiation machine to produce radiation if actuated shall be located on a
			 control panel or console, and shall cause a warning light immediately adjacent
			 to the switch or device to light; this light shall remain lit if, and only if,
			 the associated control circuit is energized.
(4) Locations designated as high radiation
			 areas, and entrances to the locations shall be equipped with easily observable
			 flashing or rotating red or magenta warning lights that operate automatically
			 if, and only if, radiation is being produced or may be produced.
(5) Each entrance into a target room or other
			 high radiation area shall be provided with a safety interlock designed to
			 terminate radiation production for the possible modes of machine operation
			 under conditions of barrier penetration.
(6) Only a device on the accelerator control
			 console shall be used to turn the accelerator beam on and off. The safety
			 interlock system shall not be used to turn off the accelerator beam, except in
			 an emergency. If the interlock system does turn off the accelerator, it shall
			 not be possible to resume operation without resetting the accelerator "ON"
			 device at the control console.
(7)
			 Safety interlocks shall not be dependent upon the operation of a single
			 circuit; i.e., they shall be of redundant or fail-safe design. Each safety
			 interlock shall be on a circuit which shall allow it to operate independently
			 of other safety interlocks.
(8) A
			 scram button or other emergency power cutoff switch shall be located and easily
			 identifiable in high radiation areas. The cutoff switch shall include a manual
			 reset, so that the accelerator cannot be restarted from the accelerator console
			 without resetting the cutoff switch.
(9) Circuit diagrams of the accelerator and
			 the associated interlock systems shall be kept current and maintained for
			 inspection by the cabinet and shall be available to the operator.
(10) A lock shall be provided on the control
			 panel or console.
(11)
			 Instrumentation, readouts, and controls on the particle accelerator control
			 console shall be clearly identified and easily discernible.
(12) Safety interlocks shall be designed so
			 that a defect or component failure in the safety interlock system prevents
			 operation of the accelerator.