Full conversion from ohmic to runaway electron driven current via massive gas injection in the TCV tokamak
| Autor: | J. Decker, G. Papp, S. Coda, B.P. Duval, U. Sheikh, P. Blanchard, D. Choi, C. Galperti, L. Calacci, D. Carnevale, O. Ficker, M. Gobbin, B. Labit, E. Macusova, J. Mlynar, V. Plyusnin, O. Sauter, null the TCV Team, null the EUROfusion MST1 Team |
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| Přispěvatelé: | TCV Team, EUROfusion MST1 Team |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Nuclear fusion 62 (2022): 076038-1–076038-12. doi:10.1088/1741-4326/ac544e info:cnr-pdr/source/autori:Decker J.; Papp G.; Coda S.; Duval B.P.; Sheikh U.; Blanchard P.; Choi D.; Galperti C.; Calacci L.; Carnevale D.; Ficker O.; Gobbin M.; Labit B.; Macusova E.; Mlynar J.; Plyusnin V.; Sauter O./titolo:Full conversion from ohmic to runaway electron driven current via massive gas injection in the TCV tokamak/doi:10.1088%2F1741-4326%2Fac544e/rivista:Nuclear fusion/anno:2022/pagina_da:076038-1/pagina_a:076038-12/intervallo_pagine:076038-1–076038-12/volume:62 Nuclear Fusion |
| ISSN: | 1741-4326 0029-5515 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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