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Division Spotlight
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.
Meeting Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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
NextGen MURR Working Group established in Missouri
The University of Missouri’s Board of Curators has created the NextGen MURR Working Group to serve as a strategic advisory body for the development of the NextGen MURR (University of Missouri Research Reactor).
J. J. Steyn, D. G. Andrews
Nuclear Science and Engineering | Volume 27 | Number 2 | February 1967 | Pages 318-327
Technical Paper | doi.org/10.13182/NSE67-A18271
Articles are hosted by Taylor and Francis Online.
Differential angular and energy distributions of backscattered gamma rays have been measured for photons normally incident on essentially semi-infinite scattering media of various atomic numbers. The measurements have been made by permitting a highly collimated 3- × 3-in. sodium-iodide (thallium-activated) scintillation crystal to view a sample area at the center of a scattering slab region irradiated by a broad beam of gamma radiation. The spectra have been recorded on a 400-channel pulse-height analyzer and reduced to detector incident flux by means of an IBM-7094 digital computer. The results have then been expressed graphically in terms of albedos and fitted to simple empirical expressions. In the case of high-atomic-number scatterers, K x-ray fluorescence has been separately evaluated.
