Recent advances in design and R&D for the Quasi-Poloidal Stellarator experiment

Engineering innovation is required to reduce cost and risk in fabrication for the Quasi-Poloidal Stellarator being developed to test key physics issues at very low plasma aspect ratio. Complex, highly accurate, stainless steel modular coil winding forms are cast and machined; conductor is wound dire...

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Bibliographic Details
Published in:Fusion engineering and design 2007-10, Vol.82 (5), p.575-582
Main Authors: Lyon, J.F., Nelson, B.E., Benson, R.D., Berry, L.A., Cole, M.J., Fogarty, P.J., Freudenberg, K.D., Goranson, P.L., Harris, J.H., Heitzenroeder, P., Lumsdaine, A.D., Madhukar, M.A., Neilson, G.H., Shannon, T.E., Spong, D.A.
Format: Article
Language:English
Subjects:
Magnet
Magnet R&D
Stellarator
Online Access:Get full text
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Summary:Engineering innovation is required to reduce cost and risk in fabrication for the Quasi-Poloidal Stellarator being developed to test key physics issues at very low plasma aspect ratio. Complex, highly accurate, stainless steel modular coil winding forms are cast and machined; conductor is wound directly onto the winding forms; a vacuum-tight cover is welded over each coil pack; the coils are vacuum pressure impregnated; the completed coils are installed in an external vacuum vessel. An internally cooled, compacted cable conductor that can be wound into complex 3-D shapes was developed. The largest and most complex of the winding forms has been cast using a patternless process (machined sand molds) and a high-temperature pour. The resulting casting required
ISSN:0920-3796
1873-7196
DOI:10.1016/j.fusengdes.2007.03.059