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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
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!
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Latest News
First astatine-labeled compound shipped in the U.S.
The Department of Energy’s National Isotope Development Center (NIDC) on March 31 announced the successful long-distance shipment in the United States of a biologically active compound labeled with the medical radioisotope astatine-211 (At-211). Because previous shipments have included only the “bare” isotope, the NIDC has described the development as “unleashing medical innovation.”
Kirill Fedorovich Raskach
Nuclear Science and Engineering | Volume 170 | Number 2 | February 2012 | Pages 196-206
Technical Paper | doi.org/10.13182/NSE11-09
Articles are hosted by Taylor and Francis Online.
In this paper a new technique for accounting for multigroup cross section interdependence in sensitivity calculations is proposed and numerically investigated. In this technique the so-called implicit sensitivities representing multigroup cross-section interdependence are calculated through subgroup parameters. The technique turns out to be easy to implement in existing multigroup cross-section preparation codes and can cover both the homogeneous media and the heterogeneous media conventionally considered in such codes. This technique allows further extensions to cover arbitrary heterogeneous structures. The Monte Carlo technique of computing conventional sensitivities of keff to multigroup cross sections used in this paper is also described.