1 / 1

1 Session II-A : Lithium in Magnetic Confinement Topical Experiments

1 Session II-A : Lithium in Magnetic Confinement Topical Experiments. Six papers have been presented on measurements taken in the edge region to understand the plasma behaviour in presence of lithium . The main results are:

fallon-stanley
Download Presentation

1 Session II-A : Lithium in Magnetic Confinement Topical Experiments

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 1Session II-A:Lithium in Magnetic Confinement Topical Experiments Sixpapershavebeenpresented on measurementstaken in the edgeregiontounderstand the plasma behaviour in presenceoflithium. The mainresults are: • Divertor surface pumping reduce ion density (inventory) by up to 50 % • Decreased fueling efficiency and increased target plasma temperature consistent with an actively absorbing surface (LLD) • Sheath heat transmission coefficient is measured to be 2.49 +/- 0.04. One third of the classical value, so what accounts for this discrepancy? • LLD surface shows significant signs of clamping in peak and radially averaged temperature compared to graphite where no clamping occurs • The rise in temperature of the Li is less than one would find with a simple 1-D analysis. Evaporation of Li is of interest. The work function depends on surface chemistry and impurities. • White-appearance of PFCs after evaporation suggested passivation of first layers of lithium coatings and motivated further investigation • Evidence of C on LLD due to sputtering from graphite PFCs

More Related