Turbulence and transport diagnostic using multilayer mirror telescopes and monochromator arrays

Details Turbulence and transport diagnostic using multilayer mirror telescopes and monochromator arrays Turbulence and transport diagnostic using multilayer mirror telescopes and monochromator arrays

Nov 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aps..dppbp1088s&link_type=abstract

American Physical Society, 46th Annual Meeting of the Division of Plasma Physics, 15-19 November, 2004, Savannah, GA. MEETING I

Physics

Plasma Physics

Scientific paper

The correlation between particle flows and turbulent fluctuations can directly test transport theory predictions. For a simultaneous measurement of the particle transport and density fluctuations in the core of MFE devices we are developing an integrated diagnostic based on Li III Lya emission at 135 ÅThis will consist of a 4-inch telescope imaging fast, small scale fluctuations in the Li III density and an array of 135 Åmonochromators measuring the Li III density on the transport space/time scale. The 135 Åtelescope has one flat and one spherical Mo/Si mirror, achieving around 20% transmission, few Åspectral resolution and 0.5 cm spatial resolution, for a 10x10 cm field of view. Photodiode arrays, ``optical'' scintillator arrays and miniature MCPs are being tested as focal plane detectors. For the transport measurement requiring a large field of view, grid-collimator/mirror monochromators are being developed. Simultaneous core transport and turbulence measurements will then be possible using Li tracer embedded pellets and neutral beam excitation of the 135 Åline.

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