Radiological Protection Ordinance
(RPO)

¹ In oc­cu­pa­tion­ally ex­posed per­sons, ra­di­ation ex­pos­ure must be de­term­ined in­di­vidu­ally in ac­cord­ance with An­nex 4 (in­di­vidu­al mon­it­or­ing).

² Ex­tern­al ex­pos­ure must be de­term­ined every month.

³ The su­per­vis­ory au­thor­ity may grant ex­emp­tions from para­graphs 1 and 2 if:

a.

an ad­di­tion­al or an­oth­er ap­pro­pri­ate dose mon­it­or­ing sys­tem is avail­able;

b.

no ap­pro­pri­ate dose mon­it­or­ing sys­tem is avail­able, but en­hanced ra­di­olo­gic­al pro­tec­tion meas­ures are taken.

⁴ The FDHA shall spe­cify, in con­sulta­tion with EN­SI, how and at what in­ter­vals in­tern­al ra­di­ation ex­pos­ure is to be de­term­ined. In do­ing so, it shall take in­to ac­count the work­ing con­di­tions and the type of ra­di­o­nuc­lides used.

⁵ It shall spe­cify, in con­sulta­tion with EN­SI, when a second, in­de­pend­ent do­si­metry sys­tem ful­filling an ad­di­tion­al func­tion must be used.