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Conference Spotlight
2025 ANS Winter Conference & Expo
November 8–12, 2025
Washington, DC|Washington Hilton
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
White House taps Douglas Weaver for NRC role
The Trump White House has nominated seasoned nuclear regulatory expert Douglas Weaver for a commissioner seat on the Nuclear Regulatory Commission. If confirmed, Weaver would fill the seat vacated by NRC commissioner Annie Caputo, who resigned in July.
Weaver’s nomination was sent earlier today to the Senate Environment and Public Works Committee. If confirmed, he would finish the remainder of Caputo’s term, which expires June 30, 2026.
G. Shaviv, S. Yiftah
Nuclear Technology | Volume 3 | Number 4 | April 1967 | Pages 213-216
Technical Paper and Note | doi.org/10.13182/NT67-A27758
Articles are hosted by Taylor and Francis Online.
The effect of Plutonium isotopic composition on the Doppler coefficient is examined in fast reactors having different chemical compositions of the fuel and different core volumes. It is found that for a given core volume and chemical composition the absolute value of the Doppler coefficient increases with increase of the amount of high Plutonium isotopes (240Pu, 241Pu, and 242Pu).
