Washington Administrative Code › Title 246 - Health, Department of › RADIATION › Chapter 246-236 - Licenses and radiation safety requirements for irradiators › DESIGN AND PERFORMANCE REQUIREMENTS FOR IRRADIATORS › Section 246-236-041 - Construction monitoring and acceptance testing

Current through Register Vol. 24-14, July 15, 2024
The requirements of this section must be met for
					 irradiators whose construction begins after July 1, 1993. The requirements must
					 be met prior to loading sources.
(1)
				  Shielding. For panoramic or beam-type irradiators, the licensee shall monitor
				  the construction of the shielding to verify that its construction meets design
				  specifications and generally accepted building code requirements for reinforced
				  concrete.
(2) Foundations. For
				  panoramic or beam-type irradiators, the licensee shall monitor the construction
				  of the foundations to verify that their construction meets design
				  specifications.
(3) Pool integrity.
				  For pool irradiators, the licensee shall verify that the pool meets design
				  specifications and shall test the integrity of the pool. The licensee shall
				  verify that outlets and pipes meet the requirements of WAC
				  246-236-033(2).
(4) Water handling
				  system. For pool irradiators, the licensee shall verify that the water
				  purification system, the conductivity meter, and the water level indicators
				  operate properly.
(5) Radiation
				  monitors. For all irradiators, the licensee shall verify the proper operation
				  of the monitor to detect sources carried on the product conveyor system and the
				  related alarms and interlocks required under WAC 246-236-029(1). For pool
				  irradiators, the licensee shall verify the proper operation of the radiation
				  monitors and the related alarm if used to meet the requirements under WAC
				  246-236-059(2). For underwater irradiators, the licensee shall verify the
				  proper operation of the over-the-pool monitor, alarms, and interlocks required
				  under WAC 246-236-029(2).
(6)
				  Source rack. For panoramic or beam-type irradiators, the licensee shall test
				  the movement of the source racks for proper operation prior to source loading;
				  testing must include source rack lowering due to simulated loss of power. For
				  all irradiators with product conveyor systems, the licensee shall observe and
				  test the operation of the conveyor system to assure that the requirements of
				  WAC 246-236-035 are met for protection of the source rack and the mechanism
				  that moves the rack; testing must include tests of any limit switches and
				  interlocks used to protect the source rack and mechanism that moves the rack
				  from moving product carriers.
(7)
				  Access control. For panoramic or beam-type irradiators, the licensee shall test
				  the completed access control system to assure that it functions as designed and
				  that all alarms, controls, and interlocks work properly.
(8) Fire protection. For panoramic or
				  beam-type irradiators, the licensee shall test the ability of the heat and
				  smoke detectors to detect a fire, to activate alarms, and to cause the source
				  rack to automatically become fully shielded. The licensee shall test the
				  operability of the fire extinguishing system.
(9) Source return. For panoramic or beam-type
				  irradiators, the licensee shall demonstrate that the source racks can be
				  returned to their fully shielded positions without off-site power.
(10) Computer systems. For panoramic or
				  beam-type irradiators that use a computer system to control the access control
				  system, the licensee shall verify that the access control system will operate
				  properly if off-site power is lost and shall verify that the computer has
				  security features that prevent an irradiator operator from commanding the
				  computer to override the access control system when it is required to be
				  operable.
(11) Wiring. For
				  panoramic or beam-type irradiators, the licensee shall verify that the
				  electrical wiring and electrical equipment that were installed meet the design
				  specifications.