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Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
T. Obiki, F. Sano, K. Kondo, H. Zushi, K. Hanatani, T. Mizuuchi, S. Besshou, H. Okada, K. Nagasaki, M. Wakatani, M. Nakasuga, Y. Nakamura, B.J. Peterson, C. Christou, Y. Ijiri, T. Senju, K. Yaguchi, S. Kobayashi, K. Toshi, K. Sakamoto, Y. Kurimoto, F. Funaba, A. Isayama, T. Hamada, Y. Suzuki, K. Kinoshita, H. Sugai, H. Toyota, K. Sasaki, M. Yamage, T. Saito, K. Walanabe, S. Sudo, N. Noda, K. Akaishi, M. Sato, S. Okamura, K. Ida, S. Hidekuma, M. Iima, S. Kado, K. Muraoka, K. Matsuo, H. Matsuura, T.S. Bigelow, M. Murakami, J.F. Lyon
Fusion Science and Technology | Volume 27 | Number 3 | April 1995 | Pages 85-90
Overview Paper | doi.org/10.13182/FST95-A11947050
Articles are hosted by Taylor and Francis Online.
Recent results of Heliotron E experiment are reviewed. Detailed studies of the plasma transport have been achieved in Heliotron E, in which the plasma wall interaction has been changed using the ECH boronization technique. The boronization realized low-density, high-Ti plasmas whose ion collisionality deeply extended to the I/v-regime. The local electron and ion thermal diffusivities in the NBI plasma are analyzed and discussed by comparison with theory-based transport models. The particle transport in ECH plasmas is investigated with edge fluctuation measurements. Both electrostatic and magnetic fluctuations are well correlated with the global particle confinement. Characteristic structures of the electric field or potential distribution are observed during the particle confinement degradation phase. It is considered that dc convective flow across the last closed flux surface is caused by the potential structure. Edge plasma flows have been discussed in connection with these studies and with asymmetric divertor heat/particle load.