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Design, characterization, and modeling of the Charge eXchange Recombination Spectroscopy (CXRS) suite at the SMall Aspect Ratio Tokamak (SMART)

Authors :
Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
EUROfusion Consortium
Cruz Zabala, Diego José
Viezzer, Eleonora
Rodríguez González, A.
Segado Fernández, Jorge
Alvarado Reyes, A.
Pérez González, J.
García Muñoz, Manuel
Dux, R.
Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
EUROfusion Consortium
Cruz Zabala, Diego José
Viezzer, Eleonora
Rodríguez González, A.
Segado Fernández, Jorge
Alvarado Reyes, A.
Pérez González, J.
García Muñoz, Manuel
Dux, R.
Publication Year :
2024

Abstract

Ion temperature, rotation, and density are key parameters to evaluate the performance of present and future fusion reactors. These parameters are critical for understanding ion heat, momentum, and particle transport, making it mandatory to properly diagnose them. A common technique to measure these properties is charge exchange recombination spectroscopy (CXRS). For characterizing positive and negative triangularity plasmas at the small aspect ratio tokamak, a poloidal array of gas puff based CXRS diagnostics will be measuring the ion properties in different poloidal positions. In this work, the modeling of the expected signal and spatial coverage using the FIDASIM code is presented. Furthermore, the design and characterization of the low field side midplane CXRS diagnostic are described. Each diagnostic is composed of a gas injection system, an optical system that collects the light emitted by the plasma, and a spectrometer. These systems will provide ion temperature, rotation, and density with a radial resolution of 3.75 mm and a temporal resolution of 2.2 ms.

Details

Database :
OAIster
Notes :
English
Publication Type :
Electronic Resource
Accession number :
edsoai.on1457284587
Document Type :
Electronic Resource