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
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
Meeting Spotlight
2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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
October 2024
Nuclear Technology
Fusion Science and Technology
August 2024
Latest News
New laws offer nuclear industry incentives for existing power plant uprates
This year, the U.S. nuclear industry received a much-needed economic boost that could help preserve operating nuclear power plants and incentivize upgrades that extend their lifespan and power output.
Signed into law in 2022, the Inflation Reduction Act offers production tax credits (PTCs) for existing nuclear power plants and either PTCs or investment tax credits (ITCs) for new carbon-free generation. These credits could make power uprates—increasing the maximum power level at which a commercial plant may operate—a much more appealing option for utilities.
Tsutomu Iijima, Shoji Nomoto
Nuclear Science and Engineering | Volume 22 | Number 1 | May 1965 | Pages 102-110
Technical Paper | doi.org/10.13182/NSE65-A19767
Articles are hosted by Taylor and Francis Online.
A new method for determining the angular and energy distributions of an anisotropic fast-neutron flux by using nuclear emulsions based on the proton-recoil method is proposed. The relation between the distributions of neutron flux and proton-recoil tracks is analyzed, and formulas for obtaining the angular distribution and energy spectrum of the neutron flux from the measurement of proton-recoil tracks are derived. Measurements were made to investigate the accuracy of this method with the emulsion plate, which was irradiated inside a natural uranium system. The experimental results show that the measurement of the anisotropic component, which hitherto could not be measured, is possible.