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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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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World Bank, IAEA partner to fund nuclear energy
The World Bank and the International Atomic Energy Agency signed an agreement last week to cooperate on the construction and financing of advanced nuclear projects in developing countries, marking the first partnership since the bank ended its ban on funding for nuclear energy projects.
W. R. Mills, Jr., L. S. Allen, F. Selig, R. L. Caldwell
Nuclear Technology | Volume 1 | Number 4 | August 1965 | Pages 312-321
Technical Paper | doi.org/10.13182/NT65-A20528
Articles are hosted by Taylor and Francis Online.
The die-away of thermal neutrons and capture gamma rays from a pulsed source has been measured in a heterogeneous rock-fluid system for a variety of physical conditions. The system was a cubical lattice about one meter on a side, consisting of vertical calcium carbonate rods and empty channels. The channels were filled with either calcium carbonate rods or fluid, thus giving a variable volume ratio of rock and fluid. Measurements with a 3He counter and NaI detector were carried out in a 7-in. (18-cm) diameter hole through the middle of the cube. Experimentally measured neutron lifetimes were compared to values calculated from a three-group time- and space-dependent computer code. A theoretical gamma-ray decay curve was calculated from a spatial integration over the computed neutron distribution. Unattenuated and singly scattered radiation were included.