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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
Latest News
Chris Wagner: The role of Eden Radioisotopes in the future of nuclear medicine
Chris Wagner has more than 40 years of experience in nuclear medicine, beginning as a clinical practitioner before moving into leadership roles at companies like Mallinckrodt (now Curium) and Nordion. His knowledge of both the clinical and the manufacturing sides of nuclear medicine laid the groundwork for helping to found Eden Radioisotopes, a start-up venture that intends to make diagnostic and therapeutic raw material medical isotopes like molybdenum-99 and lutetium-177.
G. Motojima, H. Okada, K. Y. Watanabe, Y. Nakamura, F. Sano, K. Nagasaki, T. Mizuuchi, S. Kobayashi, K. Kondo, S. Yamamoto, Y. Suzuki, K. Hanatani, Y. Torii, M. Kaneko, H. Arimoto, H. Yamazaki, S. Watanabe, T. Tsuji, H. Nakamura, H. Kitagawa, H. Yabutani, S. Fujikawa, M. Uno
Fusion Science and Technology | Volume 51 | Number 1 | January 2007 | Pages 122-128
Technical Paper | Stellarators | doi.org/10.13182/FST07-A1293
Articles are hosted by Taylor and Francis Online.
Toroidal current has been studied in electron cyclotron heating (ECH) and ECH + neutral beam injection (NBI) plasmas on Heliotron J by controlling the bumpy field component. In the ECH plasma with high density, the toroidal current increases from 0.3 to 1.5 kA when B04/B00 is increased from 0.01 to 0.15, where B04 and B00 are the bumpy field and the uniform field components, respectively. The observed toroidal current is qualitatively in good agreement with neoclassical calculation results without radial electric field except for a low bumpy configuration case at low density. If the radial electric field is responsible for the deviation in the low bumpiness case, the central electric potential is estimated to be ~3 to 5 kV. The dependence of the net toroidal current on the bumpiness has also been observed in the ECH + NBI plasma. An estimation of the Ohkawa current has been attempted.
