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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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Latest News
The busyness of the nuclear fuel supply chain
Ken Petersenpresident@ans.org
With all that is happening in the industry these days, the nuclear fuel supply chain is still a hot topic. The Russian assault in Ukraine continues to upend the “where” and “how” of attaining nuclear fuel—and it has also motivated U.S. legislators to act.
Two years into the Russian war with Ukraine, things are different. The Inflation Reduction Act was passed in 2022, authorizing $700 million in funding to support production of high-assay low-enriched uranium in the United States. Meanwhile, the Department of Energy this January issued a $500 million request for proposals to stimulate new HALEU production. The Emergency National Security Supplemental Appropriations Act of 2024 includes $2.7 billion in funding for new uranium enrichment production. This funding was diverted from the Civil Nuclear Credits program and will only be released if there is a ban on importing Russian uranium into the United States—which could happen by the time this column is published, as legislation that bans Russian uranium has passed the House as of this writing and is headed for the Senate. Also being considered is legislation that would sanction Russian uranium. Alternatively, the Biden-Harris administration may choose to ban Russian uranium without legislation in order to obtain access to the $2.7 billion in funding.
Erfan Ibrahim
Fusion Science and Technology | Volume 15 | Number 2 | March 1989 | Pages 154-165
Technical Paper | Plama Engineering | doi.org/10.13182/FST89-A25353
Articles are hosted by Taylor and Francis Online.
A two-fluid theoretical model of heat transport in tokamaks is developed based on microinstabilities. A τE scaling of the form has been determined from this transport model. The theoretical τE scaling is used to determine the smallest size tokamak fusion reactor for two cases, ignition and Q = 5 steady state. Parameters are in good agreement with Tokamak Ignition/Burn Experimental Reactor II designs based on empirical Kaye-Goldston τE scaling.
