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
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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!
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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.
Per Knudsen, Carsten Bagger, Hans Carlsen, Ib Misfeldt, Mogens Mogensen
Nuclear Technology | Volume 72 | Number 3 | March 1986 | Pages 258-267
Technical Paper | Radiation Protection and Health Physics Practices and Experience in Operating Reactors Internationally / Fission Reactor | doi.org/10.13182/NT86-A33765
Articles are hosted by Taylor and Francis Online.
Data are presented on fission gas release for UO2-Zr fuel pins that were subjected to slow power increases late in life. These tests were performed with fuel pins that had been previously irradiated to average burnups of 27000 to 35000 MWd/ton U (peak pellet 43 700 MWd/ton U). The subsequent power increases were to 301 to 444 W/cm (peak pellet), and the hold time was 24 h, with one test at 72 h. Emphasis was given to extensive axially and radially local measurements, rather than to integral pin data. Cross-sectional releases increased with transient powers above 350 W/cm; at 415 W/cm they seemed to saturate at 40 to 45 % within 24 h. Radially local releases started at calculated local temperatures at ∼700°C, reaching a constant level of 90 to 95% above 1100°C. Local swelling appeared to begin at ∼650 to 700°C, with maximum swelling levels at 10%. From the observed transient release data, an effective diffusion coefficient could be calculated that was more than three orders of magnitude higher than commonly accepted values.