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Fusion Science and Technology
Latest News
Framatome signs contracts with Sizewell C
French nuclear developer Framatome is slated to deliver key equipment for Sizewell C Ltd.’s two large reactors planned for the United Kingdom’s Suffolk coast.
The agreement, reportedly worth multiple billions of euros, was announced this week and will involve Framatome from the design phase until commissioning. The company also agreed to a long-term fuel supply deal. Framatome is 80.5 percent owned by France’s EDF and 19.5 percent owned by Mitsubishi Heavy Industries.
M. Ichimura et al.
Fusion Science and Technology | Volume 59 | Number 1 | January 2011 | Pages 98-103
doi.org/10.13182/FST11-A11583
Articles are hosted by Taylor and Francis Online.
Plasmas with high ion-temperature of several keV have been produced by using ion-cyclotron range of frequency (ICRF) heating in the GAMMA 10 tandem mirror. In such high performance plasmas, high and low-frequency fluctuations are excited and ions trapped in the magnetic field interact with such fluctuations. Three types of wave-particle interactions have been observed in the GAMMA 10 tandem mirror. The turning point diffusion near the ion cyclotron resonance layer has been observed in minimum-B configuration on the anchor cell. Pitch angle scattering of high-energy ions due to the AIC modes and low-frequency waves which have differential frequencies between discrete peaks of the AIC modes are clearly detected. The drift-type fluctuations are clearly observed in the central cell. By using a semiconductor detector, high-energy ions are detected at the radial location far from the plasma edge. The fluctuation, of which frequency is the same as that of drift-type fluctuation, is observed in the signal of high-energy ions. From the pitch angle distribution of the phase differences between both fluctuations, radial transport of high-energy ions caused by drift-type fluctuations near their turning points in the confining mirror field is suggested in the experiments.