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Decommissioning & Environmental Sciences
The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
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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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NRC cuts fees by 50 percent for advanced reactor applicants
The Nuclear Regulatory Commission has announced it has amended regulations for the licensing, inspection, special projects, and annual fees it will charge applicants and licensees for fiscal year 2025.
Q. Sharfuddin, W. A. Schier, R. S. Tanczyn, D. J. Pullen, M. H. Haghighi, L. Fisteag, G. P. Couchell
Nuclear Science and Engineering | Volume 98 | Number 4 | April 1988 | Pages 341-347
Technical Paper | doi.org/10.13182/NSE88-A23534
Articles are hosted by Taylor and Francis Online.
A sensitive search for a dependence of composite (aggregate) delayed neutron spectra on the energy of neutrons inducing fission of 235U was performed for eight nearly contiguous delay time intervals between 0.17 to 85.5 s. The experimental arrangement combined a helium jet and tape transfer system with a beta-neutron time-of-flight spectrometer. Thermal and fast neutron measurements were performed successively. Results are compared with spectra derived from individual precursor data complemented by theoretical estimates of missing spectra.
