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Swiss nuclear power and the case for long-term operation
Designed for 40 years but built to last far longer, Switzerland’s nuclear power plants have all entered long-term operation. Yet age alone says little about safety or performance. Through continuous upgrades, strict regulatory oversight, and extensive aging management, the country’s reactors are being prepared for decades of continued operation, in line with international practice.
Norman Ketzlach
Nuclear Science and Engineering | Volume 6 | Number 3 | September 1959 | Pages 187-190
Technical Paper | doi.org/10.13182/NSE59-A25658
Articles are hosted by Taylor and Francis Online.
The maximum safe limits on the storage and shipment of slightly enriched fuels may be increased by the addition of fixed neutron poisons. A theoretical study, verified by experiment, is presented to show that an infinite amount of O.95 per cent U235 enriched fuel will be subcritical when the fuel elements are encased in tubing at least ⅛ in. thick. The fuel elements considered are solid rods of 1.34-in. diameter and tubular elements of 1.37-in. O.D. and O.48-in. I.D. Without the tubing it is possible to make as little as four tons of the fuel elements considered critical.
