Nuclear Fusion (Jan 2024)
Alpha particle loss measurements and analysis in JET DT plasmas
- P.J. Bonofiglo,
- V.G. Kiptily,
- J. Rivero-Rodriguez,
- M. Nocente,
- M. Podestà,
- Ž. Štancar,
- M. Poradzinski,
- V. Goloborodko,
- S.E. Sharapov,
- M. Fitzgerald,
- R. Dumont,
- J. Garcia,
- D. Keeling,
- D. Frigione,
- L. Garzotti,
- F.G. Rimini,
- D. Van Eester,
- E. Lerche,
- M. Maslov,
- JET Contributors
Affiliations
- P.J. Bonofiglo
- ORCiD
- Princeton Plasma Physics Laboratory, Princeton , NJ 08543, United States of America
- V.G. Kiptily
- ORCiD
- United Kingdom Atomic Energy Authority , Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom of Great Britain and Northern Ireland
- J. Rivero-Rodriguez
- ORCiD
- United Kingdom Atomic Energy Authority , Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom of Great Britain and Northern Ireland; University of Seville , Seville, Spain
- M. Nocente
- ORCiD
- University of Milano-Bicocca , Piazza della Scienza 3, 20126 Milano, Italy
- M. Podestà
- ORCiD
- Princeton Plasma Physics Laboratory, Princeton , NJ 08543, United States of America
- Ž. Štancar
- ORCiD
- United Kingdom Atomic Energy Authority , Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom of Great Britain and Northern Ireland; Slovenian Fusion Association, Jozef Stefan Institute , Jamova 39, SI-1000 Ljubljana, Slovenia
- M. Poradzinski
- ORCiD
- United Kingdom Atomic Energy Authority , Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom of Great Britain and Northern Ireland
- V. Goloborodko
- Institute for Nuclear Research , Prospekt Nauky 47, Kyiv 03680, Ukraine
- S.E. Sharapov
- ORCiD
- United Kingdom Atomic Energy Authority , Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom of Great Britain and Northern Ireland
- M. Fitzgerald
- United Kingdom Atomic Energy Authority , Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom of Great Britain and Northern Ireland
- R. Dumont
- ORCiD
- CEA, IRFM , F-13108 Saint Paul Lez Durance, France
- J. Garcia
- ORCiD
- CEA, IRFM , F-13108 Saint Paul Lez Durance, France
- D. Keeling
- United Kingdom Atomic Energy Authority , Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom of Great Britain and Northern Ireland
- D. Frigione
- Università di Roma Tor Vergata , Via del Politecnico 1, Roma, Italy
- L. Garzotti
- ORCiD
- United Kingdom Atomic Energy Authority , Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom of Great Britain and Northern Ireland
- F.G. Rimini
- United Kingdom Atomic Energy Authority , Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom of Great Britain and Northern Ireland
- D. Van Eester
- ORCiD
- Laboratory for Plasma Physics LPP-ERM/KMS , B-1000 Brussels, Belgium
- E. Lerche
- United Kingdom Atomic Energy Authority , Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom of Great Britain and Northern Ireland; Laboratory for Plasma Physics LPP-ERM/KMS , B-1000 Brussels, Belgium
- M. Maslov
- ORCiD
- United Kingdom Atomic Energy Authority , Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom of Great Britain and Northern Ireland
- JET Contributors
- DOI
- https://doi.org/10.1088/1741-4326/ad69a1
- Journal volume & issue
-
Vol. 64,
no. 9
p. 096038
Abstract
Burning reactor plasmas will be self-heated by fusion born alpha particles from deuterium-tritium reactions. Consequently, a thorough understanding of the confinement and transport of DT-born alpha particles is necessary to maintain the plasma self-heating. Measurements of fast ion losses provide a direct means to monitor alpha particle confinement. JET’s 2021–2022 second experimental DT-campaign offers burning plasma scenarios with advanced fast ion loss diagnostics for the first time in nearly 25 years. Coherent and non-coherent alpha losses were observed due to a variety of low frequency MHD activity. This manuscript will present the loss mechanisms, spatial and pitch dependencies, scalings with plasma parameters, correlations with wall impurities, and magnitude of DT-alpha born losses.
Keywords
