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Two-chord interferometry using He–Ne laser on a flux-coil-generated FRCa)
a)Contributed paper, published as part of the Proceedings of the 18th Topical Conference on High-Temperature Plasma Diagnostics, Wildwood, New Jersey, May 2010.
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10.1063/1.3475538
/content/aip/journal/rsi/81/10/10.1063/1.3475538
http://aip.metastore.ingenta.com/content/aip/journal/rsi/81/10/10.1063/1.3475538
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Cross-sectional view of the flux-coil-generated FRC device and diagnostic layout.

Image of FIG. 2.
FIG. 2.

(a) Optical layout of the interferometer system on FCG-FRC (layout not scaled). (b) Block diagram of the interferometer electronics including 40 MHz local oscillator (LO), bias tees (BT) with , band-pass filters (BPF), low-pass filters (LPF), attenuator (Attn), amplifiers (Amp), splitter (Spl), and quadrature phase detectors (QPD).

Image of FIG. 3.
FIG. 3.

Time sequences of (a) flux-coil and flux-limiter currents. (b) Axial magnetic fields at , 11.7, 27.8, and 29.5 cm. (c) Excluded-flux radius and field-null radius. (d) Line-integrated densities at and 20 cm. (e) Line-averaged densities of FRC plasma.

Image of FIG. 4.
FIG. 4.

(a) Radial profile of axial magnetic field on FCG-FRC at with a fitted-line and (b) comparison of densities from the interferometry (chord 1) and inferred from the magnetic measurement.

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2010-10-04
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Two-chord interferometry using 3.39 μm He–Ne laser on a flux-coil-generated FRCa)
http://aip.metastore.ingenta.com/content/aip/journal/rsi/81/10/10.1063/1.3475538
10.1063/1.3475538
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