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November 8–12, 2025
Washington, DC|Washington Hilton
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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.
Bernhard Unterberg
Fusion Science and Technology | Volume 61 | Number 2 | February 2012 | Pages 199-212
Edge Physics and Exhaust | Proceedings of the Tenth Carolus Magnus Summer School on Plasma and Fusion Energy Physics | doi.org/10.13182/FST12-A13507
Articles are hosted by Taylor and Francis Online.
Basic properties of the plasma edge in magnetically confined fusion plasmas are summarized. Starting from the magnetic topology of tokamaks we describe the transport of the scrape-off layer including drifts, the transition to high recycling and detached plasma regimes typical for divertors and the consequences of the electrostatic Debye sheath in front of the plasma facing components. The transport of the fuel neutrals (hydrogen atoms and molecules) is introduced.