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November 8–12, 2025
Washington, DC|Washington Hilton
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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.
T. Norimatsu, A. Sunahara, K. Nagai, T. Yamanaka
Fusion Science and Technology | Volume 38 | Number 1 | July 2000 | Pages 28-33
Technical Paper | Thirteenth Target Fabrication Specialists’ Meeting | doi.org/10.13182/FST00-A36111
Articles are hosted by Taylor and Francis Online.
Influence of residual gas in a laser fusion reactor chamber at the time of pellet injection is discussed, including the lifetime of a cryogenic target, the stall by drag force, the deviation by a crosswind and the lift by spin of the pellet. The pellet is assumed to be injected accurately with designated speed and direction every time. Preliminary results indicate that the vapor pressure in the chamber should be less than 0.1 Torr and the shot-to-shot variation in the wind speed must be less than 1 m/s to deliver the fuel pellet at the firing position with an accuracy of 100 μm.