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Elevation angle alignment of quasi optical receiver mirrors of collective Thomson scattering diagnostic by sawtooth measurements
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- Moseev, D. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Meo, F. (author)
- Danmarks Tekniske Universitet,Technical University of Denmark
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- Korsholm, S. B. (author)
- Danmarks Tekniske Universitet,Technical University of Denmark
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- Max Planck Gesellschaft zur Förderung der Wissenschaften eV. (MPG) Danmarks Tekniske Universitet (creator_code:org_t)
- AIP Publishing, 2012
- 2012
- English.
- In: Review of Scientific Instruments. - : AIP Publishing. - 1089-7623 .- 0034-6748. ; 83:10
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Localized measurements of the fast ion velocity distribution function and the plasma composition measurements are of significant interest for the fusion community. Collective Thomson scattering (CTS) diagnostics allow such measurements with spatial and temporal resolution. Localized measurements require a good alignment of the optical path in the transmission line. Monitoring the alignment during the experiment greatly benefits the confidence in the CTS measurements. An in situ technique for the assessment of the elevation angle alignment of the receiver is developed. Using the CTS diagnostic on TEXTOR without a source of probing radiation in discharges with sawtooth oscillations, an elevation angle misalignment of 0.9 degrees was found with an accuracy of 0.25 degrees.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- radiation
- ion temperature
Publication and Content Type
- art (subject category)
- ref (subject category)
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- Moseev, D.
- Meo, F.
- Korsholm, S. B.
- Bindslev, H.
- Furtula, Vedran, ...
- Kantor, M.
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- Leipold, F.
- Michelsen, P. K.
- Nielsen, S. K.
- Salewski, M.
- Stejner, M.
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- Chalmers University of Technology
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