A new method for determining the plasma electron density using three-color interferometer

Journal Article · Fri Jun 15 00:00:00 EDT 2012 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4731651· OSTI ID:22093629

Arakawa, Hiroyuki; Kawano, Yasunori; Itami, Kiyoshi ^[1]

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1. Japan Atomic Energy Agency, 801-1 Mukoyama, Naka-shi, Ibaraki 311-0193 (Japan)

A new method for determining the plasma electron density using the fractional fringes on three-color interferometer is proposed. Integrated phase shift on each interferometer is derived without using the temporal history of the fractional fringes. The dependence on the fringe resolution and the electrical noise are simulated on the wavelengths of CO{sub 2} laser. Short-time integrations of the fractional fringes enhance the reliability of this method.

• OSTI ID: 22093629
• Journal Information: Review of Scientific Instruments, Vol. 83, Issue 6; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CARBON COMPOUNDS
CARBON DIOXIDE LASERS
COLOR
COLOR MODEL
ELECTRON DENSITY
INTERFEROMETERS
PHASE SHIFT
PLASMA
PLASMA DENSITY
PLASMA DIAGNOSTICS
RELIABILITY
RESOLUTION
SIMULATION
VISIBLE RADIATION
WAVELENGTHS