Two-wavelength infrared interferometer/polarimeter system for CIT

Journal Article · Mon Aug 01 04:00:00 EDT 1988 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1140272· OSTI ID:6822452

Ma, C H; Hutchinson, D P; Vander Sluis, K L

The results of a feasibility study of a two-wavelength infrared interferometer/polarimeter system for measurements of electron density and plasma current profiles in the Compact Ignition Tokamak (CIT) are presented. The system utilizes CO/sub 2/ lasers at a wavelength of 10.6 ..mu..m, and water-vapor lasers at 28 ..mu..m. Both magneto-optic and electro-optic polarization-modulation techniques have been used to determine the sensitivity and time response of the polarimetry at 10.6 ..mu..m. Measurement of a simulated plasma Faraday rotation demonstrated a sensitivity of approximately 0.01/sup 0/ for a CO/sub 2/ laser polarimeter with an electro-optic CdTe crystal modulator.

• Research Organization: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
• OSTI ID: 6822452
• Journal Information: Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 59:8; ISSN RSINA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
CLOSED PLASMA DEVICES
COMPACT IGNITION TOKAMAK
ELECTRON DENSITY
FARADAY EFFECT
FEASIBILITY STUDIES
INTERFEROMETERS
MEASURING INSTRUMENTS
MODULATION
NATIONAL ORGANIZATIONS
ORNL
PLASMA DIAGNOSTICS
POLARIMETERS
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTORS
TOKAMAK DEVICES
TOKAMAK TYPE REACTORS
US AEC
US DOE
US ERDA
US ORGANIZATIONS