A year after Jürg Schmid retired from the ENSI Board, the Federal Council has selected Tanja Manser as his successor. The ENSI Board will therefore have six members from 1 January 2019.
The reactor pressure vessel is enclosed by the containment as the third barrier. This consists of a steel primary containment and a concrete secondary containment.
Swiss nuclear facilities successfully reduced their liquid radioactive releases in recent years. This emerged from the seventh report submitted by Switzerland on the implementation of the OSPAR Convention.
With its pipelines, shut-off valves and other components, the cooling circuit, together with the reactor pressure vessel, is the second barrier for trapping radioactive substances
The reactor pressure vessel, together with the water’s cooling circuit, is the second barrier for trapping radioactive substances.
Werner Bühlmann is due to stand down from the ENSI Board at the end of 2018. The 72 year-old cites his advancing years as the reason for his decision. While regretting his departure, the ENSI Board offer its sincere thanks for his contributions over the years.
The fuel pellets are filled into metal tubes. Together with the nuclear fuel matrix, the cladding tubes are the first barrier for trapping radioactive substances in nuclear power plants.
The nuclear fuel is pressed into pellets and compacted using the sintering process before use in nuclear power plants. This process transforms the nuclear fuel into a ceramic material, which is able to retain the fission products that arise during operation in the nuclear fuel matrix.
The barrier concept aims to trap sources of radiation in nuclear facilities across several levels. Similar to the layers of an onion, independent barriers ensure that the risk from sources of radiation are minimised for people and the environment.