Impurity ion density measurements at the plasma edge of ASDEX Upgrade using lithium beam charge exchange spectroscopy

Journal Article · Wed Mar 15 00:00:00 EST 2006 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.2179887· OSTI ID:20778920

Wolfrum, E; Schweinzer, J; Reich, M; Horton, L D; Maggi, C F ^[1]

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1. Max-Planck-Institut fuer Plasmaphysik, EURATOM Association, Boltzmannstrasse 2, D-85748 Garching (Germany)

The method of lithium-beam charge exchange spectroscopy is used to determine the density of C{sup 6+} and He{sup 2+} impurity ions at the edge of the ASDEX Upgrade tokamak plasma. Spectrally resolved measurements are used. l-level resolved atomic capture cross sections are corrected for collisional mixing. The absolute calibration relies on simultaneous beam emission spectroscopy. Together with detailed beam attenuation modeling, impurity ion densities can be measured with good accuracy.

• OSTI ID: 20778920
• Journal Information: Review of Scientific Instruments, Vol. 77, Issue 3; Other Information: DOI: 10.1063/1.2179887; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ASDEX TOKAMAK
ATTENUATION
BEAM-PLASMA SYSTEMS
BEAMS
CARBON IONS
CHARGE EXCHANGE
CROSS SECTIONS
DENSITY
EMISSION SPECTROSCOPY
HELIUM IONS
ION DENSITY
LITHIUM
PLASMA
PLASMA DIAGNOSTICS
PLASMA IMPURITIES