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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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DOE issues new NEPA rule and procedures—and accelerates DOME reactor testing
Meeting a deadline set in President Trump’s May 23 executive order “Reforming Nuclear Reactor Testing at the Department of Energy,” the DOE on June 30 updated information on its National Environmental Policy Act (NEPA) rulemaking and implementation procedures and published on its website an interim final rule that rescinds existing regulations alongside new implementing procedures.
S. Aoyama, Y. Miyazawa, K. Ogura, A. Sugawara, M. Hirata (19P40)
Fusion Science and Technology | Volume 51 | Number 2 | February 2007 | Pages 325-327
Technical Paper | Open Magnetic Systems for Plasma Confinement | doi.org/10.13182/FST07-A1390
Articles are hosted by Taylor and Francis Online.
We improve the performance of the K-band oversized backward wave oscillator. The beam is annular and weakly relativistic. The beam voltage is less than 100 kV and the beam current is less than 500 A. The operation frequencies are in the range of 23-27 GHz. The electromagnetic field of the K-band BWO concentrates in the vicinity of the SWS wall and the electron beam should be propagated within a few mm from the wall. The uniformity of annular beam is also very important for the efficient beam coupling. First, we modify the oversized SWS so that the beam interaction point is shifted to the point. Secondly, we improve uniformity of the annular electron beam and the output power increases up to about 500 kW level.