Showing 1 - 3 of 3 Conference Paper Results
2019
UKAEA-CCFE-CP(19)33
46th European Physical Society Conference on Plasma Physics (EPS), Milan, 8-12 July 2019
C.D. Challis S. Brezinsek I. Coffey N. Hawkes D. Keeling D. King G. Pucella E. Viezzer JET Contributors
The initial Ohmic current ramp phase of JET hybrid plasmas, including a current ‘overshoot’ before the main heating, is used to optimise the q-profile shape to allow access to high β and avoid MHD instabilities [1]. Such hybrid plasmas have never been operated using tritium (T) or mixed deuterium-tritium (D-T) fuel. However, experiments with i…
Preprint Published2018
UKAEA-CCFE-CP(18)05
45th European Physical Society Conference on Plasma Physics (EPS), Prague, 2-6 July 2018
M Valovic P T Lang A Kirk W Suttrop M Bernert M Cavedon M Dunne R Fischer L Garzotti L Guimarais F Janky N Leuthold PJ Mc Carthy A Mlynek B Plockl G Tardini E Viezzer E Wolfrum the ASDEX Upgrade team the EUROfusion MST1 team
Pellets are used in ASDEX Upgrade [1] to control plasma density under conditions of ELM control or divertor detachment. In experiments presented here direct fuelling by gas is negligible. Relative pellet size and pellet deposition are aimed to approach those in ITER but differences still remain. ELMs are controlled by n=2 RMPs in feed forward mode …
Preprint2018
UKAEA-CCFE-CP(18)04
27th IAEA Fusion Energy Conference, Ahmedabad, India, 22-27 October 2018