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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Deep Space: The new frontier of radiation controls
In commercial nuclear power, there has always been a deliberate tension between the regulator and the utility owner. The regulator fundamentally exists to protect the worker, and the utility, to make a profit. It is a win-win balance.
From the U.S. nuclear industry has emerged a brilliantly successful occupational nuclear safety record—largely the result of an ALARA (as low as reasonably achievable) process that has driven exposure rates down to what only a decade ago would have been considered unthinkable. In the U.S. nuclear industry, the system has accomplished an excellent, nearly seamless process that succeeds to the benefit of both employee and utility owner.
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.
