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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.
R. M. Mayo
Fusion Science and Technology | Volume 21 | Number 3 | May 1992 | Pages 1635-1638
Plasma Engineering | doi.org/10.13182/FST92-A29954
Articles are hosted by Taylor and Francis Online.
Data from single chord Doppler ion temperature measurements in spheromaks have been analyzed with the aid of a one dimensional equilibrium charge state transport code. With electron temperature profiles known from Thomson scattering and estimates for transport rates, we can determine the radial location for the impurity line emission. The results of these analyses are the reconstruction of one dimensional ion temperature profiles. From this Ti profile data we can now correctly calculate volume averaged confinement quantities. Our initial findings are that previously quoted values of 〈β〉 and 〈τE〉 were underestimated by a factor of ∼ 4 and now the highest quoted energy confinement times are ∼ 50µs.