A fast acquisition rate system for charge exchange measurements at the   plasma edge at the ASDEX Upgrade tokamak
  In this work, a new type of high through-put Czerny-Turner spectrometer has been developed which allows to acquire multiple channels simultaneously with a repetition time on the order of \SI{10}{\us} at different wavelengths. The spectrometer has been coupled to the edge charge exchange recombination system at ASDEX Upgrade which has been recently refurbished with new lines of sight. Construction features, calibration methods, and initial measurements obtained with the new setup will be presented. 
Marco Cavedon, Thomas P\"utterich, Eleonora Viezzer, Ralph Dux,   Benedikt Geiger, Rachael Marie McDermott, Hendrik Meyer, U...
physics.plasm-ph physics.ins-det