ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
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.
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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Latest News
Senate committee hears from energy secretary nominee Chris Wright
Wright
Chris Wright, president-elect Trump’s pick to lead the U.S. Department of Energy, spent hours today fielding questions from members of the U.S. Senate’s committee on Energy and Natural Resources.
During the hearing, Wright—who’s spent most of his career in fossil fuels—made comments in support of nuclear energy and efforts to expand domestic generation in the near future. Asked what actions he would take as energy secretary to improve the development and deployment of SMRs, Wright said: “It’s a big challenge, and I’m new to government, so I can’t list off the five levers I can pull. But (I’ve been in discussions) about how to make it easier to research, to invest, to build things. The DOE has land at some of its facilities that can be helpful in this regard.”
D. Ingman, E. Taviv
Nuclear Science and Engineering | Volume 92 | Number 4 | April 1986 | Pages 550-569
Technical Paper | doi.org/10.13182/NSE86-A18612
Articles are hosted by Taylor and Francis Online.
Mapping of source-hydrogenous medium systems within the framework of three-group diffusion theory is discussed. Each system is presented by the point of the map with coordinates: X ratio of first- and second-group diffusion lengths, and Г ratio of slowing down and thermal diffusion lengths. This mapping leads to the method of source-medium systems classification, which reduces the phase space of the problem. In accordance with this method, source-medium systems can be characterized by only two parameters, scale and shape. Thermal flux in the systems with the same shape parameter can be described with the same “generalized flux function (GFF).” The approach of GFFs is investigated for direct and inverse problems. The first one is presentation of thermal flux for certain source-medium systems with the help of these functions, and the second one is estimation of medium neutron transport parameters from the measured thermal flux through GFFs.
