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September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Fusion Science and Technology
Latest News
ANS joins others in seeking to discuss SNF/HLW impasse
The American Nuclear Society joined seven other organizations to send a letter to Energy Secretary Christopher Wright on July 8, asking to meet with him to discuss “the restoration of a highly functioning program to meet DOE’s legal responsibility to manage and dispose of the nation’s commercial and legacy defense spent nuclear fuel (SNF) and high-level radioactive waste (HLW).”
H. Utoh, K. Nishimura, S. Inagaki, H. Takahashi, Y. Tanaka, M. Takenaga, M. Ogawa, J. Shinde, K. Iwazaki, A. Okamoto, K. Shinto, S. Kitajima, M. Sasao
Fusion Science and Technology | Volume 50 | Number 3 | October 2006 | Pages 434-439
Technical Paper | Stellarators | doi.org/10.13182/FST06-A1266
Articles are hosted by Taylor and Francis Online.
In the Tohoku University Heliac, a high-density plasma is produced by a vanadium electrode. The vanadium electrode is pretreated for hydrogen storage. In biasing experiments using the vanadium electrode, a high-density plasma is observed in not only argon plasmas but also helium plasmas. When the vanadium electrode is biased negatively, the radial distribution of the electron density steepens at the electrode position, and a strong negative radial electric field is formed between the electrode and the last closed flux surface. The E × B drift velocity is 30 km/s, and the estimated poloidal Mach number Mp is -20. The measured beta value exceeded 0.5% in the low-field discharges.