A phase contrast imaging–interferometer system for detection of multiscale electron density fluctuations on DIII-D | Zendy

E.M. Davis | Zendy; J. C. Rost | Zendy; M. Porkoláb | Zendy; A. Marii | Zendy; M. A. Van Zeeland | Zendy

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A phase contrast imaging–interferometer system for detection of multiscale electron density fluctuations on DIII-D

Author(s) -

E.M. Davis,

J. C. Rost,

M. Porkoláb,

A. Marii,

M. A. Van Zeeland

Publication year - 2016

Publication title -

review of scientific instruments

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.605

H-Index - 165

eISSN - 1089-7623

pISSN - 0034-6748

DOI - 10.1063/1.4960727

Subject(s) - interferometry , physics , astronomical interferometer , optics , phase contrast imaging , diii d , interference (communication) , electron density , plasma diagnostics , electron , ion , tokamak , plasma , channel (broadcasting) , computer science , nuclear physics , computer network , phase contrast microscopy , quantum mechanics

Heterodyne interferometry and phase contrast imaging (PCI) are robust, mature techniques for measuring low-k and high-k electron density fluctuations, respectively. This work describes the first-ever implementation of a combined PCI-interferometer. The combined system uses a single 10.6 μm probe beam, two interference schemes, and two detectors to measure electron density fluctuations at large spatiotemporal bandwidth (10 kHz

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