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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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ANS joins others in seeking to discuss SNF/HLW impasse
The American Nuclear Society joined seven other organizations to send a letter to Energy Secretary Christopher Wright on July 8, asking to meet with him to discuss “the restoration of a highly functioning program to meet DOE’s legal responsibility to manage and dispose of the nation’s commercial and legacy defense spent nuclear fuel (SNF) and high-level radioactive waste (HLW).”
Gregory J. Van Tuyle, Gregory C. Slovik, Robert J. Kennett, Bing C. Chan, Arnold L. Aronson
Nuclear Technology | Volume 91 | Number 2 | August 1990 | Pages 165-184
Technical Paper | Safety of Next Generation Power Reactor / Nuclear Saftey | doi.org/10.13182/NT90-A34426
Articles are hosted by Taylor and Francis Online.
Analytical results from an independent evaluation of the so-called “inherent reactor shutdown” mechanism in the proposed Power Reactor Inherently Safe Module (PRISM) advanced liquid-metal reactor design are discussed. Inherent reactor shutdown, in this context, refers to the tendency of the metal fuel reactor to inherently transition to a low power level when the reactor overheats significantly. Such behavior was demonstrated at the small Experimental Breeder Reactor II in 1986, but extrapolation to the proposed PRISM design concept requires extensive computer calculations. Analyses by Brookhaven National Laboratory (BNL) tend to confirm calculations submitted by General Electric (GE) and the Argonne National Laboratory staff providing technical expertise to GE on the metal fuel. The BNL calculations also indicate some problem areas, particularly with respect to very low probability events that could lead to sodium voiding.