First WEST shutdown to adjust the magnetic configuration   


The first WEST experimental campaign C1 ended July 28. Very good progresses have been made in the commissioning of the machine sub-systems. While plasma breakdown were routinely achieved, plasma current ramp-up was unexpectedly inhibited by the stray magnetic field produced by the passive structures introduced inside the vessel to improve the plasma vertical control. The summer shutdown is thus focused on the alteration of the passive structures encouraged by the first experimental results and modelling. The planned modifications require the removal of the divertor plasma facing components and the emptying of the main cooling loop. The objective is to resume plasma experiments in October. During this shutdown the new ICRH antenna and new diagnostics capabilities have also been installed inside the vacuum vessel.

SG165549, 2017-09-08
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