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2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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Fusion Science and Technology
Latest News
NRC nominee Nieh commits to independent safety mission
During a Senate Environment and Public Works Committee hearing today, Ho Nieh, President Donald Trump’s nominee to serve as a commissioner at the Nuclear Regulatory Commission, was urged to maintain the agency’s independence regardless of political pressure from the Trump administration.
E. L. Alfonso, J. W. Crippen, A. Q. L. Nguyen
Fusion Science and Technology | Volume 51 | Number 4 | May 2007 | Pages 651-654
Technical Paper | doi.org/10.13182/FST07-A1459
Articles are hosted by Taylor and Francis Online.
Fielding a cryogenic ICF capsule for near-term ignition shots requires a fill-tube to deliver fuel to the capsule. Polymer capsules (0.9 and 3.1 mm o.d.) with a monolithic fill-tube have been produced. The fill tube is formed on the capsule by plasma polymer coating on a mandrel with a depolymerizable stalk. We report recent advances achieved in monolithic fill-tube capsule production. The micro-assembly station for attaching PAMS stalk to the mandrels was improved to reduce fillet and fill tube diameters and increase throughput. Excimer laser etching is used to micro-machine fill-tube capsules and target components to allow proper mating for assembly. The fill-tube target is attached to the gas source by a flexible polymer fill line and was tested to confirm gas flow and retention. The effect of the mandrel stalk on the uniformity of GDP coating is investigated.