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Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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NRC begins special inspection at Hope Creek
The Nuclear Regulatory Commission is conducting a special inspection at Hope Creek nuclear plant in New Jersey to investigate the cause of repeated inoperability of one of the plant’s emergency diesel generators, the agency announced in a February 25 news release.
Takashi Nakamura, Toshiso Kosako
Nuclear Science and Engineering | Volume 77 | Number 2 | February 1981 | Pages 168-181
Technical Paper | doi.org/10.13182/NSE81-A21351
Articles are hosted by Taylor and Francis Online.
The skyshine of monoenergetic neutrons directed upward from sources both as a vertically collimated beam and as a point isotropic cone fixed on the ground has been calculated systematically by a Monte Carlo method for distances up to ∼2 km from the source. The energy of the neutrons ranged from 14 MeV to thermal. The calculated skyshine spectra approach an approximate equilibrium having an approximate 1/E dependence in the keV region beyond about a few hundred metres from the source. The total neutron flux Φ(r) and dose D(r) at a distance r from a source are well represented by a simple formula, and D(r) = QDexp(-r/λD)/r, and the constants , and λD are only dependent on the source-neutron energy. In respect to the dependence of , and QD on the upward aperture, θs, of the cone source and λD change very little with θs, but and QD increase with θs, when θs is larger than 30 deg. This simple formula was applied to evaluate the experimental results of skyshine neutron doses from a fast-neutron source-reactor facility and showed nice agreement.
