Florida Administrative Code › 64 - DEPARTMENT OF HEALTH › 64E - Division of Environmental Health › Chapter 64E-5 - CONTROL OF RADIATION HAZARDS › Section 64E-5.1414 - Design Requirements

Current through Reg. 50, No. 138; July 16, 2024
Irradiators whose construction begins after 8-14-96 must meet
				  the design requirements of this section. The requirements must be met before
				  the start of the construction of the specific component, but do not have to be
				  met before submitting a license application. After construction of the
				  irradiator is completed, the licensee must submit to the department copies of
				  as-built construction drawings signed by the architect and the licensee.
(1) Panoramic irradiators shall meet the
				following design requirements:
(a) Shielding.
				The licensee shall design shielding walls to meet generally accepted building
				code requirements for reinforced concrete and shall design the walls, wall
				penetrations, and entrance ways to meet the radiation shielding requirements of
				Rule  64E-5.1407, F.A.C. If the
				irradiator will use more than 2 x 1017 becquerels (5 million curies) of
				activity, the licensee shall evaluate the effects of heating of the shielding
				walls by the irradiator sources.
(b) Foundations. The licensee shall design
				the foundation with consideration given to soil characteristics to ensure it is
				adequate to support the weight of the facility.
(c) Source Rack. The licensee shall determine
				that source rack drops due to loss of power will not damage the source rack and
				that source rack drops due to failure of cables or alternate means of support
				will not cause loss of integrity of sealed sources. The licensee shall review
				the design of the mechanism which moves the sources to assure that the
				likelihood of a stuck source is low and that if the rack sticks it can be freed
				without causing radiation overexposure of personnel.
(d) Access Control. The licensee shall verify
				from the design and logic diagram that the access control system will meet the
				requirements of Rule  64E-5.1406, F.A.C.
(e) Fire Protection. The licensee shall
				verify that the number, design, locations and spacing of the smoke and heat
				detectors and extinguishing system are appropriate to detect fires and that the
				detectors are protected from mechanical and radiation damage. The licensee
				shall verify that the design of the fire extinguishing system provides the
				necessary discharge patterns, densities, and flow characteristics for complete
				coverage of the radiation room and that the system is protected from mechanical
				and radiation damage.
(f) Source
				Return. The licensee shall verify that the source rack will be returned
				automatically to the fully shielded position if off-site power is lost for more
				than 10 seconds. If a component of the return mechanism fails, the design must
				allow for accomplishing the return without causing radiation overexposures of
				personnel.
(g) Seismicity. For
				panoramic irradiators to be built in seismic areas, the licensee shall design
				the reinforced concrete radiation shields to retain their integrity in the
				event of an earthquake by designing to seismic requirements of an appropriate
				source such as American Concrete Institute Standard 318-89, "Building Code
				Requirements for Reinforced Concrete, " Chapter 21, "Special Provisions for
				Seismic Design, " or local building codes.
(h) Wiring. The licensee shall verify that
				electrical wiring and electrical equipment in the radiation room are selected
				to minimize failures due to prolonged exposure to
				radiation.