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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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DOE issues new NEPA rule and procedures—and accelerates DOME reactor testing
Meeting a deadline set in President Trump’s May 23 executive order “Reforming Nuclear Reactor Testing at the Department of Energy,” the DOE on June 30 updated information on its National Environmental Policy Act (NEPA) rulemaking and implementation procedures and published on its website an interim final rule that rescinds existing regulations alongside new implementing procedures.
Cyriel Wagemans, Olivier Serot, Peter Geltenbort, Oliver Zimmer
Nuclear Science and Engineering | Volume 136 | Number 3 | November 2000 | Pages 415-418
Technical Note | doi.org/10.13182/NSE00-A2170
Articles are hosted by Taylor and Francis Online.
The 236U(nth, f) cross section was measured for the first time at the high-flux reactor of the Institut Laue-Langevin in Grenoble, yielding a value of (0.3 ± 1.0) mb. This means that f 1.3 mb, which is about two orders of magnitude lower than previously adopted. This result was obtained by combining a highly enriched 236U sample with a very clean neutron beam and assuming that the Westcott factor gf = 1 for 236U(n, f) with cold neutrons. The new value is compatible with the latest fission resonance data and with the subthreshold character of the thermal neutron induced fission of 236U.
