Illinois Administrative Code › Title 32 - ENERGY › Part 360 - USE OF X-RAYS IN THE HEALING ARTS INCLUDING MEDICAL, DENTAL, PODIATRY, AND VETERINARY MEDICINE › Section 360.110 - Therapy Systems Operating Below 1 MeV

Current through Register Vol. 48, No. 28, July 12, 2024
In addition to the provisions of Sections
				360.10 through
				360.30
				of this Part, the requirements of this Section apply to x-ray therapy systems
				and associated facilities operating at energies less than 1 MeV.
a) Facility Design
1) A therapeutic radiological physicist shall
			 be consulted in the design of an x-ray therapy installation.
2) Shielding requirements
A) Each x-ray therapy installation shall be
			 provided with such primary and secondary barriers as are necessary to assure
			 compliance with 32 Ill. Adm. Code 340.
B) For all x-ray therapy systems capable of
			 operating above 150 kVp installed after October 15, 1993, facility design
			 information shall be submitted to the Agency for review prior to installation
			 of the x-ray therapy system. Information submitted to the Agency shall include,
			 but need not be limited to, the following:
i)
			 Name and address of the planned installation.
ii) Name, address and telephone number of the
			 therapeutic radiological physicist who was consulted in the design of the
			 installation.
iii) A scale drawing
			 that includes the location of the therapy system, control panel and doors to
			 the room.
iv) The structural
			 composition and thickness of all walls, doors, partitions, floor and ceiling of
			 the installation.
v) The occupancy
			 of areas adjacent to the installation.
vi) Calculations that demonstrate the
			 adequacy of the amount of shielding specified for each primary and secondary
			 protective barrier.
vii) Projected
			 weekly dose rates in areas adjacent to the installation.
3) Interlock. X-ray therapy
			 systems operating at greater than 150 kVp shall have an interlock installed on
			 each door of the therapy room. The interlock shall be wired into the electrical
			 circuit in such a manner that when the door is opened, for any reason, the
			 generation of x-rays will automatically be terminated and irradiation can be
			 resumed only by manually resetting the controls on the control panel after the
			 door is closed.
4) Doors. The doors
			 to the therapy room shall be designed and installed to allow opening from the
			 inside at all times and shall be capable of being opened manually.
5) Warning Lights. X-ray therapy systems
			 operating above 150 kVp, and all therapy rooms to which access is possible
			 through more than one entrance shall be provided with warning lights in a
			 readily observable position near the outside of all access doors. The warning
			 lights shall indicate when the useful beam is on.
6) Operator and control position
A) X-ray Therapy Systems Operating at 150 kVp
			 and Below. The control panel and operator shall be located either outside the
			 therapy room or behind a protective barrier within the room.
B) X-ray Therapy Systems Operating Above 150
			 kVp. The control panel and operator shall be located outside the therapy
			 room.
7) Viewing System.
			 Windows, mirrors, closed-circuit television or an equivalent system shall be
			 provided to permit continuous visual observation of the patient during
			 irradiation and shall be located so that the operator can observe the patient
			 from the control panel.
8)
			 Communication. The facility design shall permit two-way aural communications
			 between the patient and the operator at the control panel.
9) Signs required by 32 Ill. Adm. Code
			 340.920
			 shall be posted in the facility.