Article
Conceptual study for velocity space resolved thermal ion loss detection in tokamaks
Author/s | Poley Sanjuán, Jesús
Galdón Quiroga, Joaquín Viezzer, Eleonora Rueda Rueda, José Cano Megías, Pilar Oyola Domínguez, Pablo Cruz Zabala, Diego José |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear Universidad de Sevilla. Departamento de Ingeniería Energética |
Publication Date | 2022-09-20 |
Deposit Date | 2024-07-19 |
Published in |
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Abstract | A new concept for velocity space thermal ion loss detection is presented. This diagnostic provides pitch angle resolved measurements that are unfeasible with current diagnostics. It uses the same detection principle as the ... A new concept for velocity space thermal ion loss detection is presented. This diagnostic provides pitch angle resolved measurements that are unfeasible with current diagnostics. It uses the same detection principle as the Fast-Ion Loss Detector with a scintillator as the active component and includes a double slit configuration to measure simultaneously the escaping counter- and co-current ions. Simulations show a gyroradius range between 0.15 and 1.00 cm with a resolution below 0.15 cm (for a gyroradius of 1 cm) and a pitch angle range between 30° and 150° with a resolution below 8° for both counter- and co-current ions. The formation of a sheath in front of the detector and its associated electric field may impact the detection principle. Preliminary simulations with a homogeneous electric field show a decrease in the measurable velocity space range, whereas the gyroradius and pitch angle resolution barely change. The strike map is sensitive to the sheath electric field. |
Funding agencies | European Union (UE). H2020 Ministerio de Ciencia e Innovación (MICIN). España |
Project ID. | 805162
FJC2019-041092-I |
Citation | Poley Sanjuán, J., Galdón Quiroga, J., Viezzer, E., Rueda Rueda, J., Cano Megías, P., Oyola Domínguez, P. y Cruz Zabala, D.J. (2022). Conceptual study for velocity space resolved thermal ion loss detection in tokamaks. Review of Scientific Instruments, 93 (9), 093511. https://doi.org/10.1063/5.0099087. |
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