25 Pa. Code § 228.34a - Accelerator controls and interlock systems
(a) Instrumentation, readouts and controls on
the accelerator control console shall be clearly identified and easily
discernible.
(b) Entrances into a
target room or high radiation areas shall have interlocks that meet the
requirements of 10 CFR Part
20, Subpart G (relating to control of
exposure from external sources in restricted areas) and
10 CFR
20.1902 (relating to posting requirements).
If the radiation beam is interrupted by a door opening, it shall be possible to
reinitiate the radiation exposure only by closing the door first and then by
manual action at the control panel.
(c) When an interlock system has been
tripped, it shall only be possible to resume operation of the accelerator by
manually resetting controls at the interlock position, and lastly at the main
control console.
(d) Safety
interlocks shall be fail-safe, that is, designed so that a defect or component
failure in the interlock system prevents operation of the
accelerator .
(e) A scram button or
other emergency power cutoff switch shall be located and easily identifiable in
all high radiation areas. The cutoff switch shall include a manual reset so
that the accelerator cannot be restarted from the accelerator control console
without resetting the cutoff switch.
Notes
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.
No prior version found.