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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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U.S. nuclear fuel recycling takes two steps forward
Late last week saw two announcements from companies working to recycle used nuclear fuel on a commercial scale, providing welcome news to anyone hoping to see the United States move to unlock the hidden potential of the more than 94,000 metric tons of spent fuel stored at power plant sites around the country.
K. Fujimoto, T. Nakano, H. Kubo, H. Kawashima, K. Shimizu, N. Asakura (19P12)
Fusion Science and Technology | Volume 51 | Number 2 | February 2007 | Pages 247-249
Technical Paper | Open Magnetic Systems for Plasma Confinement | doi.org/10.13182/FST07-A1364
Articles are hosted by Taylor and Francis Online.
In JT-60U divertor plasmas, deuterium Balmer-series line emission has been measured with a wide-spectral-band spectrometer, which has 92 viewing chords with a ~1cm spatial resolution. Two-dimensional spatial distribution of the Balmer line intensities has been reconstructed using a computer tomography technique (maximum entropy method). In an inner-detached and outer-attached divertor plasma, the intensity of D and D lines were stronger above the strike point in the inner divertor and near the strike point in the outer divertor. The ratio of the D line intensity to the D line intensity was 0.3 - 0.5 above the strike point in the inner divertor and 0 - 0.2 near the strike point in the outer divertor. It suggested that the line emission were attributed to the plasma recombination above the strike point in the inner divertor and the plasma ionization near the strike point in the outer divertor.