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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.
Robert Kin-Yan Wong, Edward C. Morse
Fusion Science and Technology | Volume 27 | Number 4 | July 1995 | Pages 364-376
Technical Paper | Plasma Heating System | doi.org/10.13182/FST95-A30357
Articles are hosted by Taylor and Francis Online.
A quasi-optical electron cyclotron maser operating at 28 GHz is studied for applications in heating fusion plasmas. Large spherical mirrors with a small axial aperture and coupling mirror form the open resonator. In the experiment, both the large mirror and coupling mirror are adjusted to select a preferential mode of operation. This is found to improve the efficiency of interaction. Maximum efficiency was observed with a 2.5-A, 60-kV electron beam, with efficiency declining at higher currents. Water calorimetry was used to measure an efficiency of 10%. A photon-drag detector indicated higher peak power levels than those measured with calorimetry. The high-efficiency mode was due to the overlap of two cavity eigenmodes TEMn00 and TEM(n−1)10 (cylindrical notation) and to beam trapping effects that caused a better match between the beam footprint and the electric field profile than in other configurations tested.
