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Conference Spotlight
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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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.
R. B. Perez, G. de Saussure, E. G. Silver, R. W. Ingle, H. Weaver
Nuclear Science and Engineering | Volume 55 | Number 2 | October 1974 | Pages 203-218
Technical Paper | doi.org/10.13182/NSE74-A28207
Articles are hosted by Taylor and Francis Online.
The fission cross section of 235U was measured for incident-neutron energies between 2 and 100 keV using an electron LINAC pulsed source of neutrons and the time-of-flight technique. The fission events were characterized by coincidence between the pulses of a fission chamber, placed at the center of a large scintillation tank, and gamma-ray events registered in the tank. The incident-neutron spectrum versus energy was monitored by a BF3 ionization chamber and checked with a 6Li-glass neutron detector. The cross sections were normalized to a value of 31 643 b-eV for the fission integral between 2 and 10 keV.
