1327 / 1456
An unintended “potential incident” was found:
•
in ~3 % of all plans, during primary check
•
in ~½ % of all plans, during secondary check
Actual incidents:
•
in ~¼ % of cases
For each actual incident, ~14 potential incidents were
found through checking.
From IAEA database of radiation incidents
Independent calculation checks 1998-2003 on 27830 charts/plans