【212】 Design of a fast-moving Langmuir probe array to probe the TCV edge plasma

24 Aug 2017, 14:30
15m

Speaker

Hugo De Oliveira (EPFL)

Description

Understanding the turbulent plasma dynamics in the edge region of magnetically confined fusion plasmas is crucial to assure adequate energy confinement and acceptable levels of plasma-wall interaction. Unfortunately, experimental insights are often hampered by limited diagnostics information. To overcome some of these limitations, a Reciprocating Divertor Langmuir Probe Array (RDPA) is currently being designed for the TCV Tokamak at EPFL. The RDPA will aim at scanning a two-dimensional region of the boundary plasma and it will need to withstand heat fluxes larger than 50MW/m^2 for 0.2s, accelerations up to 400m/s^2, and be resilient to large scale plasma instabilities. Design solutions and other constraints will be presented.

Author

Hugo De Oliveira (EPFL)

Co-author

Christian Theiler (EPFL)

Presentation materials