Records | Retention time |
Operator training and qualifications | Two years past last employment/operation |
Safety and warning device checks | Two years |
Area radiation monitors | Two years (if necessary) |
Instrumentation tests | Two years |
Smear results | Two years (if necessary) |
Qualified expert radiation protection surveys | Life of the accelerator |
Electrical circuit diagrams | Life of the accelerator |
Permanent log of bypassing interlocks | Life of the accelerator |