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Fusion energy: Progress, partnerships, and the path to deployment
Over the past decade, fusion energy has moved decisively from scientific aspiration toward a credible pathway to a new energy technology. Thanks to long-term federal support, we have significantly advanced our fundamental understanding of plasma physics—the behavior of the superheated gases at the heart of fusion devices. This knowledge will enable the creation and control of fusion fuel under conditions required for future power plants. Our progress is exemplified by breakthroughs at the National Ignition Facility and the Joint European Torus.
M. Okamoto, T. Yoshida, M. Takizawa, M. Aida, M. Nomura, Y. Fujii
Fusion Science and Technology | Volume 14 | Number 2 | September 1988 | Pages 689-694
Tritium Properties and Interactions with Material | Proceedings of the Third Topical Meeting on Tritium Technology in Fission, Fusion and Isotopic Applications (Toronto, Ontario, Canada, May 1-6, 1988) | doi.org/10.13182/FST88-A25214
Articles are hosted by Taylor and Francis Online.
An ECR plasma discharge device has been designed and operated to study plasma driven permeation initiated by a scrape-off plasma. The observed plasma parameters are ne: 1010/cm3 and Te: <5eV in the pressure (Po) range of 0.5 − 5 Pa. Protium and deuterium permeation through a SS 304 foil of 10 µm has been measured as functions of the pressure, bias voltage and the temperature of the sample foil. Even such a low temperature plasma, a typical plasma driven permeation was observed with a very sharp“spike” at the start point of the permeation. An evident mass effect was also observed in the permeation of hydrogen isotopes. At a low pressure, around 2 Pa, the permeation showed to depend on bias voltages applied to the tested sample foil.
