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Fusion Science and Technology
Latest News
X-energy receives federal tax credit for TRISO fuel facility
Advanced reactor company X-energy has been awarded $148.5 million in tax credits under the Inflation Reduction Act for construction of its TRISO-X fuel fabrication facility in Oak Ridge, Tenn.
R. H. Goulding, J. B. O. Caughman, J. Rapp, T. M. Biewer, T. S. Bigelow, I. H. Campbell, J. F. Caneses, D. Donovan, N. Kafle, E. H. Martin, H. B. Ray, G. C. Shaw, M. A. Showers
Fusion Science and Technology | Volume 72 | Number 4 | November 2017 | Pages 588-594
Technical Paper | doi.org/10.1080/15361055.2017.1352429
Articles are hosted by Taylor and Francis Online.
Proto-MPEX is a linear plasma device being used to study a novel RF source concept for the planned Material Plasma Exposure eXperiment (MPEX), which will address plasma-materials interaction (PMI) for nuclear fusion reactors. Plasmas are produced using a large diameter helicon source operating at a frequency of 13.56 MHz at power levels up to 120 kW. In recent experiments the helicon source has produced deuterium plasmas with densities up to ~6 × 1019 m–3 measured at a location 2 m downstream from the antenna and 0.4 m from the target. Previous plasma production experiments on Proto-MPEX have generated lower density plasmas with hollow electron temperature profiles and target power deposition peaked far off axis. The latest experiments have produced flat Te profiles with a large portion of the power deposited on the target near the axis. This and other evidence points to the excitation of a helicon mode in this case.