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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Fusion Science and Technology
August 2025
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Powering the future: How the DOE is fueling nuclear fuel cycle research and development
As global interest in nuclear energy surges, the United States must remain at the forefront of research and development to ensure national energy security, advance nuclear technologies, and promote international cooperation on safety and nonproliferation. A crucial step in achieving this is analyzing how funding and resources are allocated to better understand how to direct future research and development. The Department of Energy has spearheaded this effort by funding hundreds of research projects across the country through the Nuclear Energy University Program (NEUP). This initiative has empowered dozens of universities to collaborate toward a nuclear-friendly future.
A. A. Kabantsev, C. F. Driscoll (18R13)
Fusion Science and Technology | Volume 51 | Number 2 | February 2007 | Pages 96-99
Technical Paper | Open Magnetic Systems for Plasma Confinement | doi.org/10.13182/FST07-A1324
Articles are hosted by Taylor and Francis Online.
We study ion-induced instability of flute-like (kz [approximately equal to] 0) diocotron modes in pure electron plasmas confined in a cylindrical Penning-Malmberg trap. In the absence of positive ion contamination, the low m diocotron modes are either neutrally stable (for m = 1) or weakly damped (for m = 2,3...) by Landau resonance on electrons corotating with the diocotron waves. By adding a small fraction (<1%) of positive ions into a double-well confinement configuration, we observe exponential instability of low m diocotron modes. The growth rates m are directly proportional to the overall ion fraction, Ni/Ne, and proportional to an effective charge separation of electrons and ions in the periodic wave perturbation.
