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Division Spotlight
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
Meeting Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
Standards Program
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
Hinkley Point C gets over $6 billion in financing from Apollo
U.S.-based private capital group Apollo Global has committed £4.5 billion ($6.13 billion) in financing to EDF Energy, primarily to support the U.K.’s Hinkley Point C station. The move addresses funding needs left unmet since China General Nuclear Power Corporation—which originally planned to pay for one-third of the project—exited in 2023 amid U.K. government efforts to reduce Chinese involvement.
Eckart Viehl
Nuclear Science and Engineering | Volume 56 | Number 4 | April 1975 | Pages 422-427
Technical Note | doi.org/10.13182/NSE75-A26687
Articles are hosted by Taylor and Francis Online.
Analytical expressions describing the measured auto- and cross-spectral densities of the zero-power noise at the Measuring and Research Reactor Braunschweig (FMRB) were derived from the two-point reactor kinetics equations. By means of this theory, the following properties of the two fission zones of the assembly were obtained from measurements: (a) the shutdown reactivities of the isolated cores, (b) the coupling reactivity, and (c) the power in the fission zones. The efficiencies of the detectors, needed to evaluate the properties mentioned, were obtained from these measurements also. Furthermore, the influence of the delayed neutrons-which were neglected when estimating the properties of the FMRB—on the coherence function is shown. This function was used to detect coupling effects in extended cores.
