ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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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
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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
March 2025
Nuclear Technology
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April 2025
Latest News
Penn State and Westinghouse make eVinci microreactor plan official
Penn State and Westinghouse Electric Company are working together to site a new research reactor on Penn State’s University Park, Pa., campus: Westinghouse’s eVinci, a HALEU TRISO-fueled sodium heat-pipe reactor. Penn State has announced that it submitted a letter of intent to host and operate an eVinci reactor to the Nuclear Regulatory Commission on February 28 and plans to engage with the NRC on specific siting decisions. Penn State already boasts the Breazeale reactor, which began operating in 1955 as the first licensed research reactor at a university in the United States. At 70, the Breazeale reactor is still in operation.
Farno L. Green, John A. Martin
Nuclear Science and Engineering | Volume 7 | Number 4 | April 1960 | Pages 387-391
Technical Paper | doi.org/10.13182/NSE60-A25733
Articles are hosted by Taylor and Francis Online.
The radioisotopes Mn54, I125, and I130 were produced at higher rates and at lower cost when targets of isotopically enriched Cr54, Te125, and Te130 were bombarded with protons in the ORNL 86-Inch Cyclotron. The product isotopes were carrier-free and also relatively free of undesired radioisotopes. The use of enriched isotopes as cyclotron targets is economically attractive when the target material can be recovered and reused. To obtain the maximum production rate for radioisotopes in a cyclotron, both the usable beam power and the excitation function of the nuclear reaction must be considered; in some cases the maximum rate is achieved at a reduced energy. With the ORNL 86-Inch Cyclotron, (p, n) reaction production rates were increased by a factor of 1.7 by decreasing the proton energy from 22 to 18 Mev and doubling the output current. Methods of reducing the energy below the maximum design value are discussed.
