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
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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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May 2025
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Nuclear Science and Engineering
July 2025
Nuclear Technology
June 2025
Fusion Science and Technology
Latest News
BREAKING NEWS: Trump issues executive orders to overhaul nuclear industry
The Trump administration issued four executive orders today aimed at boosting domestic nuclear deployment ahead of significant growth in projected energy demand in the coming decades.
During a live signing in the Oval Office, President Donald Trump called nuclear “a hot industry,” adding, “It’s a brilliant industry. [But] you’ve got to do it right. It’s become very safe and environmental.”
Patrick Dumaz
Nuclear Technology | Volume 87 | Number 4 | December 1989 | Pages 946-955
Technical Paper | TMI-2: Decontamination and Waste Management / Nuclear Safety | doi.org/10.13182/NT89-A27688
Articles are hosted by Taylor and Francis Online.
Within the framework of the Three Mile Island Unit 2 Analysis Exercise, the calculation of phases I and 2 of the accident (0 to 174 min) was performed with the computer code CA THARE 1 and with a preliminary version of CATHARE 1/ICARE. The initial transient (0 to 30 min) is accurately predicted by CATHARE. From the thermal-hydraulic point of view, the remainder of phase 1 has also been very well simulated, even though for the overall problem, this particular part of phase 1 did not prove to be nearly as difficult. The analysis of phase 2 is limited because the computer code does not calculate material relocation. Nevertheless, cladding ballooning and cladding oxidation seem to be correctly predicted.
