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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.
Lung Kwang Pan
Nuclear Technology | Volume 124 | Number 3 | December 1998 | Pages 276-283
Technical Paper | Radiation Measurements and Instrumentation | doi.org/10.13182/NT98-A2926
Articles are hosted by Taylor and Francis Online.
A feasibility study of gross alpha counting in real environmental samples using the superheated-liquid-droplet (SLD) technique has been carried out. To find an alternative technique as a fast screening for gross alpha counting in environmental samples, various samples acquired from real groundwater and soil were mixed with the SLD emulsion. The intersections of alpha particles with the superheated liquid Freon-12 droplets trigger the vaporization of the droplet and form bubbles. The acoustic wave accompanying the bubble formation can be recorded by a piezoelectric sensor. The number of bubbles recorded represents a measurement of the gross alpha counting. These results are reasonable when compared with those obtained using the conventional methods. However, for practical application, the SLD fabrication and correlated counting process still need to be further modified.