A Fourier transform spectrometer with fast scanning capability for tokamak plasma diagnostic

Journal Article · Tue Aug 01 00:00:00 EDT 1995 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1146438· OSTI ID:165448

Buratti, P; Zerbini, M ^[1]

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1. Associazione EURATOM-ENEA sulla Fusione, Centro Ricerche Frascati C.P. 65, 00044 Frascati, Rome (Italy)

Electron cyclotron emission spectra are routinely measured in the FTU tokamak by means of a fast scanning Fourier transform spectrometer. The key element of this instrument is a two-beam interferometer in which the path difference is varied linearly in time by rotation of a helicoidal reflector. The shortest scan time obtained for a path difference excursion of 4 cm was 1.2 ms. The spectrometer has been absolutely calibrated and the measured temperature profiles are in good agreement with those derived from other diagnostics. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

• OSTI ID: 165448
• Journal Information: Review of Scientific Instruments, Vol. 66, Issue 8; Other Information: PBD: Aug 1995
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
PLASMA DIAGNOSTICS
FOURIER TRANSFORM SPECTROMETERS
TOKAMAK DEVICES
CALIBRATION
DATA PROCESSING
INTERFEROMETERS
TEMPERATURE DISTRIBUTION