Radiological Protection Ordinance
(RPO)

A med­ic­al ra­di­ation in­cid­ent is an un­planned event in the form of a care­less or in­ap­pro­pri­ate ac­tion, with or without ac­tu­al con­sequences, which, as a res­ult of de­fi­cien­cies in the qual­ity as­sur­ance pro­gramme, tech­nic­al mal­func­tions, op­er­at­or er­ror or oth­er in­cor­rect be­ha­viour, led or could have led to un­in­ten­ded ex­pos­ures of pa­tients.