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
Young Members Group
The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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!
Latest Magazine Issues
Mar 2025
Jul 2024
Latest Journal Issues
Nuclear Science and Engineering
March 2025
Nuclear Technology
Fusion Science and Technology
February 2025
Latest News
ANS 2025 election is open
The American Nuclear Society election is now open. Members can vote for the Society’s next vice president/president-elect and treasurer as well as six board members (four U.S. directors, one non-U.S. director, and one student director). Completed ballots must be submitted by 1:00 p.m. (EDT) on Tuesday, April 15, 2025.
Keisuke Kobayashi, Nobuo Ohtani, Jungchung Jung
Nuclear Science and Engineering | Volume 55 | Number 3 | November 1974 | Pages 320-328
Technical Paper | doi.org/10.13182/NSE74-A23458
Articles are hosted by Taylor and Francis Online.
A two-dimensional diffusion equation is solved by using the finite Fourier transformation. Through applying the Fourier transformation, a one-dimensional Fredholm-type integral equation of the first kind is derived for the flux and its derivative at the boundary. By solving this equation with given boundary conditions, all of the boundary values are determined. The fluxes inside a region are also obtained by solving similar integral equations. The method of this paper differs from the usual Fourier transformation method in that the solutions are obtained without performing the inverse Fourier transforms. Numerical calculations show that the present method gives higher accuracy with less computation time than the usual finite difference method.
