Code of Massachusetts Regulations › 105 CMR - DEPARTMENT OF PUBLIC HEALTH › Title 105 CMR 120.000 - The Control of Radiation › REPORTS › Section 120.661 - Construction Monitoring and Acceptance Testing

Current through Register 1525, July 5, 2024
The requirements of 105 CMR 120.661 must be met for
				  irradiators whose construction began after July 1, 1993. The requirements must
				  be met prior to loading sources.
(A)
Shielding
: For panoramic 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.
(B)
Foundations
: For panoramic irradiators, the licensee
				shall monitor the construction of the foundations for verify that their
				construction meets design specifications.
(C)
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
				105 CMR
				120.653(B).
(D)
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.
(E)
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 by
				105 CMR
				120.649(A). For pool
				irradiators, the licensee shall verify the proper operation of the radiation
				monitors and the related alarm if used to meet
				105 CMR
				120.679(B). For underwater
				irradiators, the licensee shall verify the proper operation of the
				over-the-pool monitor, alarms, and interlocks required by
				105 CMR
				120.649(B).
(F)
Source Rack
: For
				panoramic 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 in
				105 CMR
				120.655 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 that rack from moving product carriers.
(G)
Access Control
:
				For panoramic 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.
(H)
Fire Protection
: For panoramic 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.
(I)
Source Return
: For panoramic irradiators, the licensee
				shall demonstrate that the source racks can be returned to their fully shielded
				positions without offsite power.
(J)
Computer
				Systems
: For panoramic 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 offsite 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.
(K)
Wiring
: For panoramic irradiators, the licensee shall
				verify that the electrical wiring and electrical equipment that were installed
				meet the design specifications.