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Feasibility of charge exchange spectroscopy fast helium measurements on ITER

By A Athina Kappatou, EG Ephrem Delabie, RJE Roger Jaspers and MG von Hellermann


\u3cp\u3eThe feasibility to measure fast alpha particles using Active Charge Exchange Recombination Spectroscopy (CXRS) on ITER is investigated. Through modelling of the charge exchange spectral line for fast ions together with the expected background emission, the signal-to-noise ratio has been calculated as a function of the diagnostic design parameters. Combining the CXRS data from both the heating and the diagnostic neutral beams on ITER, information on the fast ion energy spectrum up to 1 MeV can be obtained for the parameters of the ITER core CXRS diagnostic design, provided that the signal is binned in 100 keV bins and a time resolution of Isec is used.\u3c/p\u3

Year: 2011
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Provided by: Repository TU/e
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