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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
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
NRC cuts fees by 50 percent for advanced reactor applicants
The Nuclear Regulatory Commission has announced it has amended regulations for the licensing, inspection, special projects, and annual fees it will charge applicants and licensees for fiscal year 2025.
Joel H. Ferziger, Alan H. Robinson
Nuclear Science and Engineering | Volume 21 | Number 3 | March 1965 | Pages 382-389
Technical Paper | doi.org/10.13182/NSE65-A20041
Articles are hosted by Taylor and Francis Online.
The disadvantage factor of a two-region slab lattice has been calculated using Case's formalism in one-velocity transport theory. Although the problem has not been solved exactly, the Fredholm equations for the expansion coefficients which are derived converge extremely rapidly under iteration. For the numerical calculations, an IBM-7090 code based on the results has been written; the disadvantage factor can be calculated with this code in two seconds. The problem treated in this paper is highly idealized, but Case's formalism admits extensions and may lead to efficient means of calculating disadvantage factors for more realistic models; some of the extensions will be given in a later paper.
