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More from UWC 2020: Round 2
This year’s Utility Working Conference had a dynamic opening plenary and a packed roster of informative sessions. Following are recaps of some of the 2:00 p.m. (EDT) sessions that took place.
Don't miss Newswire's coverage of the opening plenary and the sessions at 12:00 pm.
L. W. Owen, N. A. Uckan
Fusion Science and Technology | Volume 4 | Number 2 | September 1983 | Pages 519-523
Plasma Engineering | dx.doi.org/10.13182/FST83-A22916
Articles are hosted by Taylor and Francis Online.
Methods of improving single particle confinement in the vacuum magnetic field of an ELMO Bumpy Torus (EBT) reactor have heretofore focused on enhancement of the effective magnetic aspect ratio through the addition of relatively low current supplementary coils to the basic EBT configuration of toroidally linked circular mirror coils. This method of aspect ratio enhancement is reviewed and compared to the use of noncircular, D-shaped mirror coils. A critical parameter in this evaluation is the required radial thickness δ of the blanket-shield assembly in the coil throat. Results indicate that D-coils represent an attractive alternative to the supplementary coil configurations if future neutronics calculations show that δ 1.1–1.2 m gives adequate neutron shielding and acceptable minimal breeding ratio under the coils. D-coils are shown to be extremely effective in symmetrizing mod-B in the midplane, thereby giving good trapped particle confinement, hot electron ring centering, and reactor volume utilization. In addition, magnetics systems with D-coils are significantly less complicated, with easier assembly, maintenance, and access, than configurations in which there are two supplementary coils per sector.