Volume 2 - Atomic Energy Regulatory Board

Treatment Simulation
Methods by which the techniques and patient positioning for radiotherapy are simulated
without delivering the therapy dose.
Type Approval
Approval, issued by the competent authority, based on evaluation of the device to
ensure that it conforms to safety standards.
Type A package
A Package designed to withstand normal conditions of transport without loss or dispersal
of its contents or loss of shielding integrity. The radioactive material may be transported
in a Type A package, either in special form radioactive material or other form, with the
provision that the activity shall not exceed the applicable limits prescribed in the relevant
code on ‘Transport of Radioactive Materials’.
Type B(U) package
A package designed to contain an activity in excess of A 1 , if special form radioactive
material, or in excess of A 2 if not special form radioactive material, that is designed to
withstand normal and accidental conditions of transport specified in the relevant code
on ‘Transport of Radioactive Materials’.
Unusual Occurrence
Any occurrence which has the potential to impair or impairs the plant safety, radiological
safety, industrial safety and/or environmental safety.
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