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TJ-II:Magnetics: Difference between revisions
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== Rogowski coils == | == Rogowski coils == | ||
Two Rogowski coils have been installed in [[TJ-II:Sectors|sectors]] A5 (148. | Two Rogowski coils have been installed in [[TJ-II:Sectors|sectors]] A5 (148.7°) and B4 (211.3°). Since the coils have to surround the plasma column completely, they are located under the protecting tiles of the groove that runs toroidally all along the [[TJ-II:Vacuum system|vacuum vessel]]. For this purpose, 2 mm deep channels were machined on the vacuum side of the groove, at the above mentioned poloidal cross sections, in order to allow enough space for the coils. | ||
The signals 'Ip_a5_' and 'Ip_b4_' in the [[TJ-II:Shot database|TJ-II database]] provide the corresponding measurements of the net plasma current. | |||
== Diamagnetic loops == | == Diamagnetic loops == | ||
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[[File:TJ-II_Diamagnetic_loop.jpg|200px|thumb|left|TJ-II diamagnetic loop]] | [[File:TJ-II_Diamagnetic_loop.jpg|200px|thumb|left|TJ-II diamagnetic loop]] | ||
Two internal diamagnetic loops are installed at | Two internal diamagnetic loops are installed at [[TJ-II:Sectors|sector]] B4 (135°) and C4 (225°). | ||
They consist of a main loop which encircles the plasma column | They consist of a main loop which encircles the plasma column | ||
and runs under the protecting tiles in the groove region and a compensating loop which | and runs under the protecting tiles in the groove region and a compensating loop which | ||