Fast pyrobolometers for measurements of plasma heat fluxes and radiation losses in the Madison symmetric torus reversed field pinch
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)
Two types of fast bolometers are described for the plasma energy transport study in the Madison symmetric torus plasma confinement device. Both types use pyrocrystals of LiTaO[sub 3] or LiNbO[sub 3] as the sensors. One type is used for measurements of the radiated heat losses and is situated at the vacuum shell inner surface. Another type is insertable in the plasma and measures the plasma particle heat flux. The frequency response of the bolometers is measured to be in the 150--200 kHz range. The range of the measured power fluxes is 0.1 W/cm[sup 2]--10 kW/cm[sup 2] and can be adjusted by changing the size of the entrance aperture. The lower limit is determined by the amplifier noise and the frequency bandwidth, the higher limit by destruction of the bolometer sensor.
- OSTI ID:
- 6035702
- Journal Information:
- Review of Scientific Instruments; (United States), Vol. 64:10; ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
PLASMA DIAGNOSTICS
BOLOMETERS
REVERSE-FIELD PINCH
HEAT FLUX
FLUCTUATIONS
HEAT LOSSES
NOISE
TOROIDAL CONFIGURATION
ANNULAR SPACE
CLOSED CONFIGURATIONS
CONFIGURATION
ENERGY LOSSES
LOSSES
MAGNETIC FIELD CONFIGURATIONS
MEASURING INSTRUMENTS
PINCH EFFECT
SPACE
VARIATIONS
700320* - Plasma Diagnostic Techniques & Instrumentation- (1992-)
700310 - Plasma Confinement- (1992-)