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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.
K. Furutachi et al.
Fusion Science and Technology | Volume 63 | Number 1 | May 2013 | Pages 343-345
doi.org/10.13182/FST13-A16949
Articles are hosted by Taylor and Francis Online.
In the tandem mirror GAMMA 10, a gold neutral beam probe (GNBP) has been developed to measure the local electrostatic potential and electric field of the central plasma. The potentials at two points of which separation is about 1cm can be measured simultaneously with high time resolution. The estimation error of the potential is reduced to be ±15V using a new fitting function for the secondary beam profile. The electric field of the plasma maintained by ICRF only (~240 kW) is a little negative (about -5 V/cm), and it increased by about 20 V/cm and became positive due to the plug ECH with the power of 300 kW.
