Fast pyrobolometers for measurements of plasma heat fluxes and radiation losses in the MST Reversed Field Pinch

Technical Report · Thu Jan 07 00:00:00 EST 1993

DOI:https://doi.org/10.2172/6701482· OSTI ID:6701482

Fiksel, G; Frank, J; Holly, D

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.

• Research Organization: Wisconsin Univ., Madison, WI (United States). Dept. of Physics
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG02-85ER53198
• OSTI ID: 6701482
• Report Number(s): DOE/ER/53198-213; ON: DE93010129
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PLASMA DIAGNOSTICS
BOLOMETERS
REVERSE-FIELD PINCH
PLASMA DRIFT
HEAT FLUX
LITHIUM OXIDES
TANTALUM OXIDES
ALKALI METAL COMPOUNDS
CHALCOGENIDES
LITHIUM COMPOUNDS
MEASURING INSTRUMENTS
OXIDES
OXYGEN COMPOUNDS
PINCH EFFECT
REFRACTORY METAL COMPOUNDS
TANTALUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
700320* - Plasma Diagnostic Techniques & Instrumentation- (1992-)