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Conference 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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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.
Evan T. Williams, Charles D. Coryell
Nuclear Technology | Volume 2 | Number 3 | June 1966 | Pages 256-258
Technical Paper and Note | doi.org/10.13182/NT66-A27598
Articles are hosted by Taylor and Francis Online.
Two experiments have shown that 87Br is the major contributor to the 55-sec delayed-neutron activity in 235U thermal-neutron fission products. An upper limit of 0.5% has been set on the possible contribution to the total 55-sec delayed-neutron activity by unknown precursors with half-life of the order of 55-sec or longer. The half-life of87Br has been accurately measured by observing the neutron decay in chemically pure bromine samples and was found to be 55.4 ± 0.7 sec.
