ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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Nuclear Science and Engineering
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Latest News
Norway’s Halden reactor takes first step toward decommissioning
The government of Norway has granted the transfer of the Halden research reactor from the Institute for Energy Technology (IFE) to the state agency Norwegian Nuclear Decommissioning (NND). The 25-MWt Halden boiling water reactor operated from 1958 to 2018 and was used in the research of nuclear fuel, reactor internals, plant procedures and monitoring, and human factors.
R. J. Gehrke, R. G. Helmer, C. W. Reich
Nuclear Science and Engineering | Volume 70 | Number 3 | June 1979 | Pages 298-306
Technical Paper | doi.org/10.13182/NSE79-A20151
Articles are hosted by Taylor and Francis Online.
The emission probability of the 312-keV gamma ray from the decay of 27-day 233Pa has been measured. A 4π beta-gamma coincidence counting system was used to determine the 233Pa sample disintegration rates, and Ge(Li) spectrometers were used to measure the gamma-ray emission rates. The resulting value for the emission probability is Iγ (312 keV) = (38.6 ± 0.5) photon/100 decays. The relative intensities of the K x rays and gamma rays emitted in the decay of 233Pa were also measured.
