CO[sub 2] laser polarimeter for measurement of plasma current profile in Alcator C-Mod

Journal Article · Sun Jan 01 04:00:00 EST 1995 · Review of Scientific Instruments; (United States)

DOI:https://doi.org/10.1063/1.1146417· OSTI ID:7060476

Ma, C H; Hutchinson, D P; Richards, R K ^[1]; Irby, J; Luke, T ^[2]

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1. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
2. MIT Plasma Fusion Center, Cambridge, Massachusetts 02139 (United States)

A multichannel infrared polarimeter system for measurement of the plasma current profile in Alcator C-Mod has been designed, constructed, and tested. The system utilizes a cw CO[sub 2] laser at a wavelength of 10.6 [mu]m. An electro-optic polarization-modulation technique has been used to achieve the high sensitivity required for the measurement. The recent results of the measurements as well as the feasibility of its application on international thermonuclear experimental reactor are presented.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 7060476
• Journal Information: Review of Scientific Instruments; (United States), Journal Name: Review of Scientific Instruments; (United States) Vol. 66:1; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700320* -- Plasma Diagnostic Techniques & Instrumentation-- (1992-)
ALCATOR DEVICE
ALIGNMENT
CARBON DIOXIDE LASERS
CLOSED PLASMA DEVICES
ELECTROMAGNETIC RADIATION
ELECTRON DENSITY
FEASIBILITY STUDIES
GAS LASERS
INFRARED RADIATION
INTERFEROMETERS
ITER TOKAMAK
LASER RADIATION
LASERS
MEASURING INSTRUMENTS
PLASMA DIAGNOSTICS
POLARIMETERS
RADIATIONS
SENSITIVITY
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTORS
TOKAMAK DEVICES
TOKAMAK TYPE REACTORS