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
Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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
Jul 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
Four million nuclear jobs by 2050: Who will do them?
Industry leaders from around the globe met this month to discuss the talent development that will be necessary for the long-term success of the nuclear industry.
The International Conference on Nuclear Knowledge Management and Human Resources Development, hosted by the International Atomic Energy Agency, was held in Vienna earlier this month. Discussed there was the agency’s forecast for nuclear capacity to more than double—or hopefully triple—by 2050 and the requirement of more than four million professionals to support the industry.
Richard L. Moore, Daniel W. Golden, E. L. Tolman
Nuclear Technology | Volume 87 | Number 4 | December 1989 | Pages 990-1004
Late Paper | TMI-2: Decontamination and Waste Management / Nuclear Safety | doi.org/10.13182/NT89-A27691
Articles are hosted by Taylor and Francis Online.
A two-dimensional finite element model was developed to simulate the Three Mile Island Unit 2 core heatup between 174 and 224 min and the subsequent cooling of the consolidated core region after the relocation of ≃25 tonnes of core material to the lower plenum of the reactor at 224 min. The model considered heat losses at the surfaces of the degraded core zone, core material melting, convective heat transfer within the molten pool, and decay heat reduction from the release of the volatile fission products. The results obtained from the model indicate that at least 17% of the consolidated core material must have been molten at 174 min in order to generate the ≃25 tonnes of core material that relocated at 224 min. The cooldown calculation indicated that as long as the core remained covered with coolant, the core configuration would remain thermally stable with pool cooldown beginning at ∼324 min after the initiation of the accident.