During 2019, severalexperimentshave evidenced anadverseeffect of the magnetic Filter Field (FF) on the plasma behaviour in the SPIDER negative ion source. This effect has been ascribedto a particular feature of the FF topologyin the plasma volume inside the radio frequency (RF) driver coils. Thisdocumentdescribesthe design and optimization ofa newlayout of the Plasma Grid (PG) current bus-barswhich implements a different FF topology insidethe RF driverregion (and behind), while keeping almost unchanged in the plasma expansion and accelerator regions.
Modification of the SPIDER PG current bus-bar routing for the optimization of the Filter Field topology
Brombin M;
2019
Abstract
During 2019, severalexperimentshave evidenced anadverseeffect of the magnetic Filter Field (FF) on the plasma behaviour in the SPIDER negative ion source. This effect has been ascribedto a particular feature of the FF topologyin the plasma volume inside the radio frequency (RF) driver coils. Thisdocumentdescribesthe design and optimization ofa newlayout of the Plasma Grid (PG) current bus-barswhich implements a different FF topology insidethe RF driverregion (and behind), while keeping almost unchanged in the plasma expansion and accelerator regions.File in questo prodotto:
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