English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

In-situ, two-dimensional (2D) Langmuir probe measurements across a large partof the TCV divertor are reported in L-mode discharges with and without divertorbaffles. This provides detailed insights into time averaged profiles, particlefluxes, and fluctuations behavior in different divertor regimes. The presenceof the baffles is shown to substantially increase the divertor neutral pressurefor a given upstream density and to facilitate the access to detachment, aneffect that increases with plasma current. The detailed, 2D probe measurementsallow for a divertor particle balance, including ion flux contributions fromparallel flows and ExB drifts. The poloidal flux contribution from the latteris often comparable or even larger than the former, such that the divertorparallel flow direction reverses in some conditions, pointing away from thetarget. In most conditions, the integrated particle flux at the outer targetcan be predominantly ascribed to ionization along the outer divertor leg,consistent with a closed-box approximation of the divertor. The exception is astrongly detached divertor, achieved here only with baffles, where the totalpoloidal ion flux even decreases towards the outer target, indicative ofsignificant plasma recombination. The most striking observation from relativedensity fluctuation measurements along the outer divertor leg is the transitionfrom poloidally uniform fluctuation levels in attached conditions tofluctuations strongly peaking near the X-point when approaching detachment.

nuclear fusion

New insights on divertor parallel flows, ExB drifts, and fluctuations  from in situ, two-dimensional probe measurement in the Tokamak \`a  Configuration Variable