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Fusion Science and Technology
Latest News
DNFSB’s Summers ends board tenure, extending agency’s loss of quorum
Lee
Summers
The Defense Nuclear Facilities Safety Board, the independent agency responsible for ensuring that Department of Energy facilities are protective of public health and safety, announced that the board’s acting chairman, Thomas Summers, has concluded his service with the agency, having completed his second term as a board member on October 18.
Summers’ departure leaves Patricia Lee, who joined the DNFSB after being confirmed by the Senate in July 2024, as the board’s only remaining member and acting chair. Lee’s DNFSB board term ends in October 2027.
Oleksandr Yu. Antufyev, Alexander A. Shishkin
Fusion Science and Technology | Volume 46 | Number 2 | September 2004 | Pages 312-317
Technical Papers | Stellarators | doi.org/10.13182/FST04-A569
Articles are hosted by Taylor and Francis Online.
Heavy impurity ions can be removed from the toroidal magnetic trap in the helical magnetic field of a conventional torsatron or heliotron with the use of an alternating current (ac) electric field. The passing particles can be transformed into helically trapped ones and escape from the magnetic confinement volume by the drift of the particles in the inhomogeneous magnetic field. The frequency of the ac electric field is taken close to the bounce frequency in the helical magnetic field. The analysis is carried out on the basis of guiding center equations.