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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.
Kotaro Tonoike, Takemi Nakamura, Yuichi Yamane, Yoshinori Miyoshi
Nuclear Technology | Volume 143 | Number 3 | September 2003 | Pages 364-372
Technical Note | Reactor Safety | doi.org/10.13182/NT03-A3424
Articles are hosted by Taylor and Francis Online.
The gamma-ray monitor installed at Processing Facility 1 in the JCO Tokai-works recorded the gamma dose rate change over time in proportion to power (nuclear fission rate) in the precipitation vessel from the beginning of the criticality accident to the end of the critical condition. The shape of the gamma dose rate record from 25 min after occurrence to the point of termination ("plateau" part) was normalized using the fission number 2.2 × 1018, and the absolute value of the power was evaluated.
