Abstract
Beam Emission spectroscopy (BES) [1,2,3,4] has been considered for quite a while as an important collateral tool to active charge exchange spectroscopy (CXRS). In addition to its application in magnetic field measurements via the Motional Stark effect [5,6] it is of equal interest for the deduction of local neutral beam densities. For higher levels of accuracy in CXRS data evaluation, that is, the deduction of local impurity ion densities from measured CX spectral intensities and (usually) calculated neutral beam densities, contributions of excited state populations need to be taken into account. The Charge Exchange Analysis Package (CHEAP), which has been developed at JET, calculates the beam n=2 population and in a second step a hybrid emission rate, which is the sum of ground-state and excited state contributions.
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von Hellermann, M.G., Jaspers, R., Summers, H.P., Zastrow, KD. (2002). Recent Progress in Beam Emission and CX Spectroscopy. In: Stott, P.E., Wootton, A., Gorini, G., Sindoni, E., Batani, D. (eds) Advanced Diagnostics for Magnetic and Inertial Fusion. Springer, Boston, MA. https://doi.org/10.1007/978-1-4419-8696-2_34
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DOI: https://doi.org/10.1007/978-1-4419-8696-2_34
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