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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. Yasuhara et al.
Fusion Science and Technology | Volume 63 | Number 1 | May 2013 | Pages 408-410
doi.org/10.13182/FST13-A16970
Articles are hosted by Taylor and Francis Online.
A novel configuration of a photon recycling probe laser system for Thomson scattering (TS) system is proposed to measure electron temperature and density of the divertor region in GAMMA10 by using a polarization control multi-pass technique. This configuration can use for simultaneous measurements of the multi-pass TS measurement of the central plasma and the 1 pass measurement of the divertor plasma. To confirm the feasibility of the new method, we have installed double pass TS system in the GAMMA 10 central plasma. As the result, the scattering light intensity at the second pass has maintained more than 95% of first pass signal. By using a same solid angle and a scattering volume of the GAMMA10 central TS system, electron density of 2×1018 m-3 will be measured at the divertor region.
