Analysis of Mirnov oscillations on PDX

Technical Report · Mon Feb 01 00:00:00 EST 1982

DOI:https://doi.org/10.2172/5455383· OSTI ID:5455383

Hammett, G; McGuire, K

Mirnov coils have been used to study MHD oscillations in PDX. We first review the information that can be obtained from Mirnov coils concerning the amplitude of these oscillations and their toroidal and poloidal mode numbers. The usual techniques for analyzing Mirnov coil data do not work well on PDX because of the rectangular arrangement of the coils, substantial noise levels, and poloidal amplitude asymmetries. A technique using digital Fourier analysis to focus attention on the fundamental frequency component of the signals has been successful in determining the m and n model numbers of Mirnov oscillations in the PDX tokamak.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 5455383
• Report Number(s): PPPL-1854; ON: DE82009816; TRN: 82-011957
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PDX DEVICES
PLASMA MACROINSTABILITIES
FOURIER ANALYSIS
MAGNET COILS
MAGNETIC ISLANDS
PLASMA WAVES
DIVERTORS
ELECTRIC COILS
ELECTRICAL EQUIPMENT
EQUIPMENT
INSTABILITY
MAGNETIC FIELD CONFIGURATIONS
PLASMA INSTABILITY
700107* - Fusion Energy- Plasma Research- Instabilities