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Division Spotlight
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.
Meeting Spotlight
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
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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February 2025
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Latest News
DOE-EM awards $37.5M to Vanderbilt University for nuclear cleanup support
The Department of Energy’s Office of Environmental Management announced on January 16 that it has awarded a noncompetitive financial assistance agreement worth $37.5 million to Vanderbilt University in Nashville, Tenn., to aid the department’s mission of cleaning up legacy nuclear waste.
W. S. Lyon
Nuclear Science and Engineering | Volume 9 | Number 2 | February 1961 | Pages 148-150
doi.org/10.13182/NSE61-A15599
Articles are hosted by Taylor and Francis Online.
Kr85 decays directly to the ground state by 0.67-Mev maximum beta emission in greater than 99% of the decay. The fraction of the decay which proceeds through a lower energy beta emission (∼0.16 Mev) followed by a gamma transition of 0.514 Mev has been determined by measurement of the number of 0.513-Mev gamma rays per beta disintegration. This γ/β ratio measured by γ scintillation spectrometry and absolute beta counting techniques was found to be 0.0038 ± 0.0003.
