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Design and simulation of an Imaging Neutral Particle Analyzer for the ASDEX Upgrade tokamak

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arxiv 2203.12995 v1 pith:WCO764MI submitted 2022-03-24 physics.plasm-ph

J. Rueda-Rueda , M. Garcia-Munoz , E. Viezzer , P. A. Schneider , J.Garcia-Dominguez , J. Ayllon-Guerola , J. Galdon-Quiroga , A. Herrmann
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X. Du M. A. Van Zeeland P. Oyola M. Rodriguez-Ramos the ASDEX-Upgrade team
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classification physics.plasm-ph
keywords willneutralneutralsresolutionactiveasdexdiagnosticfast
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abstract

An Imaging Neutral Particle Analyser (INPA) diagnostic has been designed for the ASDEX Upgrade (AUG) tokamak. The AUG INPA diagnostic will measure fast neutrals escaping the plasma after CX reactions. The neutrals will be ionised by a 20 nm carbon foil and deflected towards a scintillator by the local magnetic field. The use of a neutral beam injector (NBI) as active source of neutrals will provide radially resolved measurements while the use of a scintillator as active component will allow us to cover the whole plasma along the NBI line with unprecedented phase-space resolution ($ < $ 12 keV and 8 cm) and fast temporal response (up to 1 kHz with the high resolution acquisition system and above 100 kHz with the low resolution one); making it suitable to study localised fast-ions redistributions in phase-space.

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