Utilization of charge exchange recombination spectroscopy for the study of metallic ion transport in TFTR

Charge exchange recombination spectroscopy has been used to observe transitions originating from hydrogen‐, helium‐, and lithiumlike charge states of medium‐Z metallic impurities in TFTR. The temporal and spatial densities of these ions were measured in ohmic and neutral beam heated plasmas. These preliminary results agree with predictions of a transport code.