Article
First absolute measurements of fast-ion losses in the ASDEX Upgrade tokamak
Author/s | Rodríguez Ramos, Mauricio
García Muñoz, Manuel Jiménez Ramos, María del Carmen García López, Francisco Javier Galdón Quiroga, Joaquín Sanchís Sánchez, Lucía Ayllón Guerola, Juan Manuel Faitsch, M. González Martín, Javier Hermann, Andreas Marne, P. De Rivero Rodríguez, Juan Francisco Sieglin, B. Snicker, Antti |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear Universidad de Sevilla. Departamento de Ingeniería Mecánica y de Fabricación Universidad de Sevilla. Departamento de Física Aplicada II |
Publication Date | 2017 |
Deposit Date | 2023-03-02 |
Published in |
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Abstract | A new diagnostic technique that allows to obtain absolute fluxes of fast-ion losses measured with absolutely calibrated scintillator based fast-ion loss detectors (FILD) is presented here. First absolute fluxes of fast-ion ... A new diagnostic technique that allows to obtain absolute fluxes of fast-ion losses measured with absolutely calibrated scintillator based fast-ion loss detectors (FILD) is presented here. First absolute fluxes of fast-ion losses have been obtained in the ASDEX Upgrade tokamak. An instrument function that includes the scintillator efficiency, collimator geometry, optical transmission and camera efficiency has been constructed. The scintillator response to deuterium ions in the relevant energy range of fast-ions has been characterized using a tandem accelerator. Absolute flux of neutral beam injection (NBI) prompt losses has been obtained in magnetohydrodynamic quiescent plasmas. The temporal evolution of the heat load measured with FILD follows that measured at the FILD entrance obtained with an Infra-Red camera looking at the FILD detector head. ASCOT simulations are in good agreement with the absolute heat load of NBI prompt losses measured with FILD. |
Funding agencies | Ministerio de Economia, Industria y Competitividad (MINECO). España EUROfusion Consortium Comunidad Europea de la Energía Atómica |
Project ID. | RYC-2011-09152
FIS2015-69362-P ENE2012-31087 PCIG11-GA-2012- 321455 633053 |
Citation | Rodríguez Ramos, M., García Muñoz, M., Jiménez Ramos, M.d.C., García López, F.J., Galdón Quiroga, J., Sanchís Sánchez, L.,...,Snicker, A. (2017). First absolute measurements of fast-ion losses in the ASDEX Upgrade tokamak. Plasma Physics and Controlled Fusion, 59 (10), 105009. https://doi.org/10.1088/1361-6587/aa7e5f. |
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