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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
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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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WIPP’s SSCVS: A breath of fresh air
This spring, the Department of Energy’s Office of Environmental Management announced that it had achieved a major milestone by completing commissioning of the Safety Significant Confinement Ventilation System (SSCVS) facility—a new, state-of-the-art, large-scale ventilation system at the Waste Isolation Pilot Plant, the DOE’s geologic repository for defense-related transuranic (TRU) waste in New Mexico.
H. O. Menlove and W. P. Poenitz
Nuclear Science and Engineering | Volume 33 | Number 1 | July 1968 | Pages 24-30
Technical Paper | doi.org/10.13182/NSE68-2
Articles are hosted by Taylor and Francis Online.
The capture cross section of 238U has been measured absolutely at a neutron energy of 30 keV using kinematically collimated neutrons from the 7Li(p, n) 7Be reaction near threshold. Activation techniques were used to determine both the number of capture events and the number of neutrons that occurred during the irradiation. The result of the 238U capture cross section measurement is 479 ± 14 mb at 30 keV. In addition, the shape of the 238 U capture cross section has been measured for neutron energies from 25 to 500 keV using neutrons from the 7Li(p, n)7 Be reaction. The capture reactions in the 238 U target were detected using a large liquid scintillator tank and time-of-flight techniques. The relative neutron flux was measured using a flat response neutron detector. The cross-section shape measurement was normalized to the present absolute measurement at 30 keV. The present measurement has been compared with several measured values, theoretical calculations, and compiled values of the 238U capture cross section as given by other authors.
