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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.
Gad Shani
Nuclear Technology | Volume 51 | Number 1 | November 1980 | Pages 83-86
Technical Paper | Technique | doi.org/10.13182/NT80-A32559
Articles are hosted by Taylor and Francis Online.
A method for high fast neutron flux measurement using the reaction 93Nb(n,n')93mNb was tested. The method is based on measurement of niobium x rays. An average cross section over a measured 252Cf neutron spectrum was calculated and found to be = 1.88 ± 3% b. Here, 93mNb has a metastable level at 30 keV with a half -life of 13.6 yr. The branching ratio of the gamma rays emitted from this level was found to be ∼4%. The measurement was done by measuring the 16.52 + 16.62 keV niobium x-ray lines with an Si(Li) detector.
