Article
A fast model to resolve the velocity-space of fast-ion losses detected in ASDEX Upgrade and MAST Upgrade
Author/s | Rivero Rodríguez, Juan Francisco
García Muñoz, Manuel Galdón Quiroga, Joaquín González Martín, Javier Ayllón Guerola, Juan Manuel García Vallejo, Daniel Martin, R. McClements, K. G. Sanchís Sánchez, Lucía Zoletnik, S. |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear Universidad de Sevilla. Departamento de Ingeniería Mecánica y de Fabricación |
Publication Date | 2019 |
Deposit Date | 2023-02-15 |
Published in |
|
Abstract | A forward model to resolve the fast-ion loss velocity-space on a fast-ion loss detector (FILD) probe head (FILDSIM) has been extended, making it possible to perform real-time analysis of the FILD data ("real-time FILDSIM"). ... A forward model to resolve the fast-ion loss velocity-space on a fast-ion loss detector (FILD) probe head (FILDSIM) has been extended, making it possible to perform real-time analysis of the FILD data ("real-time FILDSIM"). Parametric pre-processing with FILDSIM enables real-time mapping of the raw FILD measurements to the velocity-space of the fast-ion distribution reaching the FILD probe, which depends on the local magnetic field at the probe head. Such parametric pre-processing facilitates the study of fast-ion losses in stages of the discharge other than the flat-top, such as the ramp-up phase when changes in the local magnetic field at the probe head cannot be neglected. Real-time FILDSIM has been applied to the existing and newly installed FILDs in ASDEX Upgrade and will be used for the forthcoming FILD in MAST-Upgrade. Due to the larger size of the MAST-U FILD probe, the approximation used in FILDSIM of a uniform magnetic field in the FILD region has been generalised to the case of a non-uniform field, with gyro-orbits calculated numerically in this field. |
Funding agencies | Universidad de Sevilla Comunidad Europea de Energía Atómica (EURATOM) |
Project ID. | PP2016-7145
6333053 |
Citation | Rivero Rodríguez, J.F., García Muñoz, M., Galdón Quiroga, J., González Martín, J., Ayllón Guerola, J.M., García Vallejo, D.,...,Zoletnik, S. (2019). A fast model to resolve the velocity-space of fast-ion losses detected in ASDEX Upgrade and MAST Upgrade. Journal of Instrumentation, 14 (9), C09015. https://doi.org/10.1088/1748-0221/14/09/C09015. |
Files | Size | Format | View | Description |
---|---|---|---|---|
A fast model.pdf | 820.8Kb | [PDF] | View/ | |