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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.
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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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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Fusion Science and Technology
Latest News
First astatine-labeled compound shipped in the U.S.
The Department of Energy’s National Isotope Development Center (NIDC) on March 31 announced the successful long-distance shipment in the United States of a biologically active compound labeled with the medical radioisotope astatine-211 (At-211). Because previous shipments have included only the “bare” isotope, the NIDC has described the development as “unleashing medical innovation.”
D.R. Cohn, L. Bromberg, R.J. Leclaire, R.E. Potok, D.L. Jassby
Fusion Science and Technology | Volume 10 | Number 3 | November 1986 | Pages 1111-1116
Nuclear Technology Experiments and Facilities | doi.org/10.13182/FST86-A24881
Articles are hosted by Taylor and Francis Online.
We discuss a super high field mode of tokamak operation that uses ohmic heating or near ohmic heating to ignition. This approach could also provide high values of nτe, increasing the margin of ignition in deuterium-tritium plasmas, and opening up the possibility of some type of advanced fuel operation. D-He3 operation might be possible if high enough values of β (β ≃ .09) can be obtained. The super high field mode of operation uses very high values of B2a, where B is the magnetic field and o is the minor radius (B2a > 100 T2m). We analyze copper magnet devices with major radii from 1.7 to 3.0 meters. Minimizing or eliminating the need for auxiliary heating has the potential advantages of reducing uncertainty in extrapolating the energy confinement time of current tokamak devices, and reducing engineering problems associated with large auxiliary heating requirements. It may be possible to heat relatively short pulse, inertially cooled tokamaks to ignition with ohmic power alone. However, there may be advantages in using a very small amount of auxiliary power (less than the ohmic heating power) to boost the ohmic heating and provide a faster start-up, especially in relatively compact devices.