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Full conversion from ohmic to runaway electron driven current via massive gas injection in the TCV tokamak
- 1.0558271 - ÚFP 2024 RIV AT eng J - Journal Article
Decker, J. - Papp, G. - Coda, S. - Duval, B. P. - Sheikh, U. - Blanchard, P. - Choi, D. - Galperti, C. - Calacci, L. - Carnevale, D. - Ficker, Ondřej - Gobbin, M. - Labit, B. - Tomešová, Eva - Mlynář, Jan - Plyusnin, V. - Sauter, O.
Full conversion from ohmic to runaway electron driven current via massive gas injection in the TCV tokamak.
Nuclear Fusion. Roč. 62, č. 7 (2022), č. článku 076038. ISSN 0029-5515. E-ISSN 1741-4326
EU Projects: European Commission(XE) 633053 - EUROfusion
Institutional support: RVO:61389021
Keywords : disruption * elongation * massive gas injection * neon * runaway electron * runaway electron beam * tokamak
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 3.3, year: 2022
Method of publishing: Limited access
https://iopscience.iop.org/article/10.1088/1741-4326/ac544e
Full conversion from ohmic to runaway electron (RE) driven current was observed in the tokamak à configuration variable (TCV) following massive injection of neon through a disruption mitigation valve into a low-density limited circular plasma. Following a partial disruption, a stable 200 kA RE beam is maintained for more than 1 s. Controlled ramp-down of the RE beam with adjustable decay rate was demonstrated. Control of the beam vertical position was achieved down to a RE current of 20 kA. RE beam formation is observed in elongated plasma configurations up to κ = 1.5. A reproducible scenario for RE beam generation without loss of circulating current is of particular interest for disruption modelling applications.
Permanent Link: https://hdl.handle.net/11104/0343900
Number of the records: 1