R 333.5450 Equipment control and operations.

Rule 450. (1) A particle accelerator shall not be left unattended without locking the control panel in a manner which prevents its use by unauthorized individuals. (2) A mobile or portable particle accelerator shall not be left unattended without locking the room or building in which it is housed in a manner which prevents its removal by unauthorized persons. (3) Access to keys used to comply with the requirements of subrules (1) and (2) of this rule shall be limited to specific individuals authorized by the radiation protection supervisor. (4) Only a switch on the accelerator control console shall be routinely used to turn the accelerator beam on and off. The safety interlock system shall not be used to turn off the accelerator beam except in an emergency or during periodic testing of the interlock system. (5) All safety and warning devices, including interlocks, shall be checked for proper operability at least quarterly. Results of these tests shall be maintained for inspection by the department at the accelerator installation. (6) Electrical circuit diagrams of the accelerator, and the associated interlock systems, shall be kept current and on file at each accelerator installation. (7) If it is necessary to intentionally bypass a safety interlock or interlocks, the action shall be in conformance with all of the following: (a) Authorized by the radiation protection supervisor pursuant to R 333.5075. (b) Recorded in a permanent log and a notice posted at the accelerator control console. (c) Terminated as soon as possible. (8) A copy of the operating and the emergency procedures shall be maintained at the accelerator control panel.