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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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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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.
V. Spiegel, Jr., A. C. B. Richardson
Nuclear Science and Engineering | Volume 10 | Number 1 | May 1961 | Pages 11-15
Technical Paper | doi.org/10.13182/NSE61-A25923
Articles are hosted by Taylor and Francis Online.
The neutron age to the 1.44-ev resonance in indium has been determined from activation measurements for a D(d, n)He3 neutron source in 99.8% heavy water. Appropriately averaged and corrected indium foil activities yield the value 119.1 ± 1.5 cm2 for the age in an infinite medium. Independent theoretical calculations for exactly this experimental arrangement by Cooper (1), Goldstein and Certaine (2), and for a comparable case by Sullivan (3) all yield values in agreement with this experimental result. It appears, therefore, that there is at present no discrepancy between theory and experiment for the age of 2–3 Mev neutrons in heavy water.
