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
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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
Oct 2025
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
November 2025
Nuclear Technology
October 2025
Fusion Science and Technology
Latest News
NEA report calls for more accurate data on SNF heat decay
The OECD Nuclear Energy Agency has issued a report calling for more-detailed information on tracking the decay heat of spent nuclear fuel from light water reactors. According to the NEA, the report highlights the increasing importance of accurate decay heat estimations due to evolving fuel characteristics, including higher initial fuel enrichment, increased burn-up rates, and extended reactor cycle lengths.
The report, Summary of the NEA Assessment on Spent Nuclear Fuel Decay Heat for Light Water Reactors, summarizes the findings of a subgroup of the NEA’s Working Party on Nuclear Criticality Safety (WPNCS), which ran from January 2022 to January 2024.
VIEW RECIPIENTSSUBMIT NOMINATION
Nomination Deadline
March 1
Presented at the
Annual Conference
Monetary Award
$1,000
The Thermal Hydraulic Meritorious Service Award recognizes an individual for sustained and exemplary service to the nuclear thermal-hydraulic profession. Service can be in the form of:
Emphasis is placed on sustained, well-recognized, service contributions over a number of years but single exceptional one-time contributions may also be considered.
The award consists of an engraved plaque and a monetary award of $1,000. It is presented at the ANS Annual Conference.
This award was established by the Thermal Hydraulics Division in 2020.
The THD has offered in the past a service award and technical award (the current Technical Achievement Award). The service award was later abandoned in favor of emphasizing the importance of the TAA. Given the recent growth of THD and the increase of individual contributors, THD established the Service Award is in the best interest of our members. In fact, given a large number of participants in the activities of THD this award seems necessary to balance the current award offering of THD which is skewed toward technical contributions. This award highlights the importance of the continued service contributions of our members, aimed at the growth of the thermal-hydraulic profession, and forming the next generation of nuclear scientists and engineers.
This award recognizes an individual for sustained and exemplary service to the nuclear thermal-hydraulic profession.
Nominees must meet the following criteria:
The candidate must demonstrate an individual or sustained contribution in one or more of the following areas:
Nominations must include the completed nomination form accompanied by the following supporting documents:
The THD Honors & Awards Committee, rather than the THD officers or Executive Committee, is responsible for reviewing the nomination packages and selecting an appropriate winner. If members of the THD Honors & Awards Committee are considered for the THD award, they recuse themselves from the selection process.
For more information, please visit the Thermal Hydraulics Division website.
View Award