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
Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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
May 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
June 2024
Nuclear Technology
Fusion Science and Technology
Latest News
Excelsior University student section awarded community education grant
The American Nuclear Society Student Section at Excelsior University in Albany, N.Y., was awarded a $5,000 grant from the ANS Student Section Strategic Fund initiative for its program, Empowering Tomorrow’s Nuclear Innovators: A Collaborative Approach to Nuclear Technology Education and Awareness.
Raymond J. Webb, James C. Brittingham
Nuclear Technology | Volume 132 | Number 2 | November 2000 | Pages 206-213
Technical Paper | Fuel Cycle and Management | doi.org/10.13182/NT00-A3139
Articles are hosted by Taylor and Francis Online.
The Lagrange Multiplier method was tested to determine its capability for replacing the current Combustion Engineering Core (CECOR) method for estimating the Palo Verde Nuclear Generating Station reactor power distributions.The Lagrange Multiplier method involves minimizing the sum of the squared residuals of 241 coupling equations subject to 61 constraint equations. The CECOR method solves 180 (241 - 61) coupling equations subject to the 61 constraint equations. The Lagrange method is more complex because it includes the 61 additional coupling equations.The "consistency test" was used to test the accuracy of both methods for computing the power in uninstrumented assemblies, i.e., one-by-one, each of the detectors is considered not available, and the remaining detectors are used to compute the powers in the uninstrumented assemblies.There is potential for expanding the Lagrange method to a three-dimensional approach that could produce even better results, and that is a consideration.