Design and implementation of gas puff imaging diagnostic to investigate 2D turbulence in the plasma of the COMPASS tokamak

0438885 - ÚFP 2015 CZ eng A - Abstrakt
Cavalier, Jordan - Weinzettl, Vladimír - Varju, Jozef - Pánek, Radomír
Design and implementation of gas puff imaging diagnostic to investigate 2D turbulence in the plasma of the COMPASS tokamak.
Symposium on Plasma Physics and Technology 2014. Prague: Czech Technical University in Prague, Faculty of Electrical Engineering, 2014. s. 21.
[SPPT 2014 - 26th Symposium on Plasma Physics and Technology/26./. 16.06.2014-19.06.2014, Prague]
Klíčová slova: Tokamak edge plasma * gas-puff imaging * diagnostic
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech

The gas puff imaging technique presents an interesting alternative allowing 2D measurements of turbulent structures by imaging the visible light emission of a controlled neutral gas puff using a fast-framing camera. Neutral gas puffs are injected in the SOL region to visualize the plasma turbulence increasing the contrast and light emission. We report here on the design and implementation of such a diagnostic for COMPASS. The design of a low divergence nozzle will be presented as it is of importance to obtain local measurements of the turbulence. The first tests of the optical and injection systems will also be shown.
Trvalý link: http://hdl.handle.net/11104/0242249