4,427
edits
Modular coil: Difference between revisions
no edit summary
(Created page with '[[File:QPS coils.png|300px|thumb|right|QPS modular coils<ref>D.A. Spong, D.J. Strickler, S.P. Hirshman, J.F. Lyon, L.A. Berry, D. Mikkelsen, D. Monticello, A.S. Ware, ''Stellarat…') |
No edit summary |
||
| Line 1: | Line 1: | ||
[[File:QPS coils.png|300px|thumb|right|QPS modular coils<ref>D.A. Spong, D.J. Strickler, S.P. Hirshman, J.F. Lyon, L.A. Berry, D. Mikkelsen, D. Monticello, A.S. Ware, ''Stellarator flexibility options with variable modular coil currents'', [http://web.ornl.gov/sci/fed/stelnews/ Stellarator News '''88''' (2003)]</ref>]] | [[File:QPS coils.png|300px|thumb|right|QPS modular coils (grey).<ref>D.A. Spong, D.J. Strickler, S.P. Hirshman, J.F. Lyon, L.A. Berry, D. Mikkelsen, D. Monticello, A.S. Ware, ''Stellarator flexibility options with variable modular coil currents'', [http://web.ornl.gov/sci/fed/stelnews/ Stellarator News '''88''' (2003)]</ref> Colours show the magnetic field strangth on the Last Closed [[Flux surface]]. There are only five different coil shapes (labels).]] | ||
Modular coils are external magnetic field coils used to produce (part of) the confining field of a stellarator. | Modular coils are external magnetic field coils used to produce (part of) the confining field of a [[stellarator]]. | ||
The design of such coils starts from a certain magnetic configuration with specific desirable physical properties (see [[Stellarator optimization]]). | The design of such coils starts from a certain magnetic configuration with specific desirable physical properties (see [[Stellarator optimization]]). | ||
This magnetic configuration is produced by a certain current distribution flowing on an external control surface. | This magnetic configuration is produced by a certain current distribution flowing on an external control surface, i.e., the surface in which the external field coils will be located. | ||
The shape of the discrete modular coils attempts to reproduce this ideal, continuous current distribution on the control surface with a certain precision. The modular coils are deformations of circular coils. | The shape of the discrete modular coils attempts to reproduce this ideal, continuous current distribution on the control surface with a certain precision. The modular coils are deformations of circular coils. | ||
Their shapes are allowed to be complex while staying within engineering limits. | |||
The number of differently shaped coils is kept as small as possible to facilitate coil construction and assembly. | The number of differently shaped coils is kept as small as possible to facilitate coil construction and assembly. | ||
== References == | == References == | ||
<references /> | <references /> | ||