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Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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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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Fusion Science and Technology
Latest News
ARPA-E announces $40 million to develop transmutation technologies for UNF
The Department of Energy’s Advanced Research Projects Agency–Energy (ARPA-E) announced $40 million in funding to develop cutting-edge technologies to enable the transmutation of used nuclear fuel into less-radioactive substances. According to ARPA-E, the new initiative addresses one of the agency’s core goals as outlined by Congress: to provide transformative solutions to improve the management, cleanup, and disposal of radioactive waste and spent nuclear fuel.
T. Kaitsuka et al. (19P75)
Fusion Science and Technology | Volume 51 | Number 2 | February 2007 | Pages 415-417
Technical Paper | Open Magnetic Systems for Plasma Confinement | doi.org/10.13182/FST07-A1420
Articles are hosted by Taylor and Francis Online.
Wave propagation around the ECR layer in the GAMMA 10 plug region is analyzed by calculating the dispersion relation of an electron cyclotron wave in a hot plasma. Then, the spatial distribution of microwave power deposition and the absorption rate along each microwave ray are calculated. The absorption rate is experimentally evaluated by using an array of waveguide antennas. The calculated value well agrees with the experimental one on reasonable assumption that the extraordinary mode shares about 90% of the injected microwave power. This analysis is used to obtain an axisymmetric power deposition distribution. It is shown that the heating wave should be directed somewhat upward than the direction to the on-axis point on the resonance layer. This is because a larger power is deposited in the injection side lower side to the machine axis. For the plug in GAMMA 10, an injection beam with an elliptic cross section is suitable to obtain a circular distribution of power deposition.