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Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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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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BREAKING NEWS: Trump issues executive orders to overhaul nuclear industry
The Trump administration issued four executive orders today aimed at boosting domestic nuclear deployment ahead of significant growth in projected energy demand in the coming decades.
During a live signing in the Oval Office, President Donald Trump called nuclear “a hot industry,” adding, “It’s a brilliant industry. [But] you’ve got to do it right. It’s become very safe and environmental.”
Itsuro Kimura, Katsuhei Kobayashi
Nuclear Science and Engineering | Volume 106 | Number 3 | November 1990 | Pages 332-344
Technical Paper | doi.org/10.13182/NSE90-A29061
Articles are hosted by Taylor and Francis Online.
Thermal-neutron-driven fast neutron fields using a fission plate and a 6LiD converter are briefly reviewed. The characteristics of a large (27-cm-diam × 1.1-cm-thick) fission plate made of highly enriched uranium and a sandwich-type 6LiD converter (two 10-cm-square × 1-cm-thick 6LiD plates) are presented, both of which have been used at the heavy water thermal neutron facility at the Kyoto University Reactor. The neutron spectra in both fields were calculated by the MCNP Monte Carlo code. The average neutron energy and the neutron spectrum of the 6LiD converter were measured and the results agree with the predicted values. Using both fields, we measured the average cross sections for some threshold reactions, 6 with the fission plate and 23 with the 6LiD converter. The results are compared with evaluated values and previous measurements.
