A simple, high performance Thomson scattering diagnostic for high temperature plasma research

Technical Report · Tue Feb 01 04:00:00 EST 1994

DOI:https://doi.org/10.2172/10142389· OSTI ID:10142389

Hartog, D J.D.; Cekic, M ^[1]

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1. Wisconsin Univ., Madison, WI (United States). Dept. of Physics

This Thomson scattering diagnostic is used to measure the electron temperature and density of the plasma in the MST reversed-field pinch, a magnetic confinement fusion research device. This diagnostic system is unique for its type in that it combines high performance with simple design and low cost components. In the design of this instrument, careful attention was given to the suppression of stray laser line light with simple and effective beam dumps, viewing dumps, aperatures, and a holographic edge filter. This allows the use of a single grating monochromator for dispersion of the Thomson scattered spectrum onto the microchannel plate detector. Alignment and calibration procedures for the laser beam delivery system, the scattered light collection system, and the spectrometer and detector are described. A sample Thomson scattered spectrum illustrates typical data.

• Research Organization: Wisconsin Univ., Madison, WI (United States). Plasma Physics Research
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG02-85ER53198
• OSTI ID: 10142389
• Report Number(s): DOE/ER/53198--235; ON: DE94010004; BR: AT051011A/AT0530020
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700320
PLASMA DIAGNOSTIC TECHNIQUES AND INSTRUMENTATION
PLASMA DIAGNOSTICS
REVERSE-FIELD PINCH
THOMSON SCATTERING