The safe enclosure of the radioactive inventory of a nuclear facilityFor the application of liability regulations, the Atomic Ene... is effected according to the multiple barrierThe safe enclosure of the radioactive inventory of a nuclear... principle, i.e., to release radioactive substancesRadioactive substances within the meaning of the Atomic Ener..., these must pass different barriers connected in series. The barriers of a nuclear reactorSee 'reactor'. are e.g.:
- Retention of fission productsNuclides generated by fission or subsequent radioactive deca... in the nuclear fuelIn accordance with the definition of the German Atomic Energ... itself,
- Enclosure of the nuclear fuelIn accordance with the definition of the German Atomic Energ... in claddingTightly bound (usually metallic) casing directly surrounding... tubes,
- Enclosure of fuelSee 'nuclear fuel'. elements in the reactor pressure vesselThick-walled cylindrical steel vessel enclosing the reactor ... and reactor coolantCoolant used to remove heat from the reactor core. (See seco... system,
- Gastight containmentGastight case around a reactor and the circuit and auxiliary....
Safety barriers of a nuclear power plantThermal power plant, primarily used for electricity generati... to avoid release of radioactive substancesRadioactive substances within the meaning of the Atomic Ener... and ionizing radiationAny radiation which directly or indirectly ionizes, e.g. alp...