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.
Explore membership for yourself or for your organization.
Conference Spotlight
2026 Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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
Nov 2025
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
December 2025
Nuclear Technology
Fusion Science and Technology
November 2025
Latest News
X-energy raises $700M in latest funding round
Advanced reactor developer X-energy has announced that it has closed an oversubscribed Series D financing round of approximately $700 million. The funding proceeds are expected to be used to help continue the expansion of its supply chain and the commercial pipeline for its Xe-100 advanced small modular reactor and TRISO-X fuel, according the company.
Gad Shani
Nuclear Technology | Volume 51 | Number 1 | November 1980 | Pages 83-86
Technical Paper | Technique | doi.org/10.13182/NT80-A32559
Articles are hosted by Taylor and Francis Online.
A method for high fast neutron flux measurement using the reaction 93Nb(n,n')93mNb was tested. The method is based on measurement of niobium x rays. An average cross section over a measured 252Cf neutron spectrum was calculated and found to be = 1.88 ± 3% b. Here, 93mNb has a metastable level at 30 keV with a half -life of 13.6 yr. The branching ratio of the gamma rays emitted from this level was found to be ∼4%. The measurement was done by measuring the 16.52 + 16.62 keV niobium x-ray lines with an Si(Li) detector.