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ANS hosts webinar on criticality safety standards
A diagram depicting the NRC’s regulatory structure for nuclear criticality safety. (Image: Oak Ridge National Laboratory)
The American Nuclear Society’s Risk-informed, Performance-based Principles and Policy Committee (RP3C) held another presentation in its monthly Community of Practice (CoP) series last month. RP3C chair Steven Krahn opened the meeting with brief introductory remarks about the importance of risk-informed, performance based (RIPB) decision-making and the need for new approaches to nuclear design that go beyond conventional and deterministic methods.
F. F. Felber, Jr., D. R. Farmelo, V. C. Van Sickle
Nuclear Science and Engineering | Volume 25 | Number 1 | May 1966 | Pages 1-7
Technical Paper | doi.org/10.13182/NSE66-A17494
Articles are hosted by Taylor and Francis Online.
The integral 9Be (n, 2n) cross section was determined by using Be and BeO samples irradiated in the core of the Battelle Research Reactor. The value obtained was 460 ±60 mb for neutrons having energies above 2.7 MeV and a fission spectrum. Fast-neutron dosimetry was accomplished using iron, nickel, and titanium threshold detectors. The results are based on measurement of the total amount of helium produced during irradiation. Corrections were made for the small contribution from (n, α) reactions on 9Be and 16O.
