Ohio Administrative Code › Title 3701:1 - Radiation Control › Chapter 3701:1-52 - Licensing and Safety Requirements for Irradiators › Section 3701:1-52-08 - Access control

Current through all regulations passed and filed through July 1, 2024
(A) Each entrance to a radiation room at a
			 panoramic irradiator must have a door or other physical barrier to prevent
			 inadvertent entry of personnel if the sources are not in the shielded position.
			 Product conveyor systems may serve as barriers as long as they reliably and
			 consistently function as a barrier. It must not be possible to move the sources
			 out of their shielded position if the door or barrier is open. Opening the door
			 or barrier while the sources are exposed must cause the sources to return
			 promptly to their shielded position. The personnel entrance door or barrier
			 must have a lock that is operated by the same key used to move the sources. The
			 doors and barriers must not prevent any individual in the radiation room from
			 leaving.
(B) Each entrance to a
			 radiation room at a panoramic irradiator must have an independent backup access
			 control to detect personnel entry while the sources are exposed. Detection of
			 entry while the sources are exposed must cause the sources to return to their
			 fully shielded position and must also activate a visible and audible alarm to
			 make the individual entering the room aware of the hazard. The alarm must also
			 alert at least one other individual who is onsite of the entry. That individual
			 shall be trained on how to respond to the alarm and prepared to promptly render
			 or summon assistance.
(C) A
			 radiation monitor must be provided to detect the presence of high radiation
			 levels in the radiation room of a panoramic irradiator before personnel entry.
			 The monitor must be integrated with personnel access door locks to prevent room
			 access when radiation levels are high. Attempted personnel entry while the
			 monitor measures high radiation levels must activate the alarm described in
			 paragraph (B) of this rule. The monitor may be located in the entrance
			 (normally referred to as the maze) but not in the direct radiation beam.
(D) Before the sources move from
			 their shielded position in a panoramic irradiator, the source control must
			 automatically activate conspicuous visible and audible alarms to alert people
			 in the radiation room that the sources will be moved from their shielded
			 position. The alarms must give individuals enough time to leave the room before
			 the sources leave the shielded position.
(E) Each radiation room at a panoramic
			 irradiator must have a clearly visible and readily accessible control that
			 would allow an individual in the room to make the sources return to their fully
			 shielded position.
(F) Each
			 radiation room of a panoramic irradiator must contain a control that prevents
			 the sources from moving from the shielded position unless the control has been
			 activated and the door or barrier to the radiation room has been closed within
			 a preset time after activation of the control.
(G) Each entrance to the radiation room of a
			 panoramic irradiator and each entrance to the area within the personnel access
			 barrier of an underwater irradiator must be posted as required in rule
			 3701:1-38-18
			 of the Administrative Code. Radiation postings for panoramic irradiators must
			 comply with the posting requirements in rule
			 3701:1-38-18
			 of the Administrative Code except that signs may be removed, covered, or
			 otherwise made inoperative when the sources are fully shielded.
(H) If the radiation room of a panoramic
			 irradiator has roof plugs or other movable shielding, it must not be possible
			 to operate the irradiator unless the shielding is in its proper location. This
			 requirement may be met by interlocks that prevent operation if shielding is not
			 placed properly or by an operating procedure requiring inspection of shielding
			 before operating.
(I) Underwater
			 irradiators must have a personnel access barrier around the pool which must be
			 locked to prevent access when the irradiator is not attended. Only operators
			 and facility management may have access to keys to the personnel access
			 barrier. There must be an intrusion alarm to detect unauthorized entry when the
			 personnel access barrier is locked. Activation of the intrusion alarm must
			 alert an individual (not necessarily onsite) who is prepared to respond or
			 summon assistance.
Five Year Review (FYR) Dates:
				10/25/2016 and
				10/15/2021
Promulgated
				Under: 119.03
Statutory
				Authority: 3748.04
Rule
				Amplifies: 3748.04
Prior
				Effective Dates: 10/20/2002