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
Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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
Apr 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
May 2024
Nuclear Technology
Fusion Science and Technology
Latest News
X-energy receives federal tax credit for TRISO fuel facility
Advanced reactor company X-energy has been awarded $148.5 million in tax credits under the Inflation Reduction Act for construction of its TRISO-X fuel fabrication facility in Oak Ridge, Tenn.
Paul P.H. Wilson, H. Tsige-Tamirat, Hesham Y. Khater, Douglass L. Henderson
Fusion Science and Technology | Volume 34 | Number 3 | November 1998 | Pages 784-788
Fusion Blanket and Shield Technology | doi.org/10.13182/FST98-A11963709
Articles are hosted by Taylor and Francis Online.
ALARA [Analytic and Laplacian Adaptive Radioactivity Analysis] v1.0,1,2 a new activation code released in January 1998 and developed specifically for the analysis of radioactivity in fusion energy systems, has been validated by comparison to other commonly used activation codes, FISPACT-973 and DKR-Pulsar 2.04 using the International Atomic Energy Agency [IAEA] Fusion Evaluated Nuclear Data Library [FENDL] Calculational Activation Benchmark.5 The solutions to the benchmark problem for both steady-state and pulsed operation have been calculated with all three programs on the same IBM RS/6000 workstation. In addition to comparing the total activity in each of the 44 non-void zones and the isotopic contributions to the activity at specific spatial points, the required computing time has been compared. For the steady state problem, agreement between ALARA and FISPACT-97 for the total activity was within 2.5% in all zones at all cooling times, and within 0.5% in most zones. For both the steady state and pulsed problem, agreement between ALARA and DKR-Pulsar 2.0 was within 1% in all zones and at all cooling times where tritium inventories were not significant. The agreement between ALARA and FISPACT-97 for the individual isotopic inventories in the stainless steel first wall back-plate were within 1% for all dominant isotopes at all cooling times, while the DKR-Pulsar 2.0 results showed some significant discrepancies. The processing time for ALARA is 2/3 of that for DKR-Pulsar 2.0 and less than 1/5 of that for FISPACT-97. This validation exercise proves that ALARA is an accurate and fast computational tool for the calculation of induced activity in fusion power systems.
