Three-dimensional laser-induced fluorescence measurements in a helicon plasma | Zendy

Robert Hardin | Zendy; Xuan Sun | Zendy; Earl Scime | Zendy

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Three-dimensional laser-induced fluorescence measurements in a helicon plasma

Author(s) -

Robert Hardin,

Xuan Sun,

Earl Scime

Publication year - 2004

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 - 10.1063/1.1787168

Subject(s) - helicon , plasma , laser induced fluorescence , ion , materials science , atomic physics , laser , plasma diagnostics , argon , optics , metastability , physics , quantum mechanics

We describe a three-dimensional (3D) laser-induced fluorescence (LIF) diagnostic for argon ions in a helicon plasma source. With three different laser injection orientations at a single spatial location, LIF measurements are performed to determine the 3D ion temperature and the 3D ion flow vector. The measurement process is then repeated at multiple locations in a cross section of the plasma column to create a two-dimensional (2D) map of the 3D ion flow, the ion temperature, and metastable ion density. Scanning in the 2D plane is accomplished by mounting the injection and collection optics on stepping motor driven stages.

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