Magnetic fluctuation probe design and capacitive pickup rejection

Franck, C. M.; Grulke, O.; Klinger, T.

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Magnetic fluctuation probe design and capacitive pickup rejection

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Franck, C. M.
Stellarator Scenario Development (E5), Max Planck Institute for Plasma Physics, Max Planck Society;
VINETA, Max Planck Institute for Plasma Physics, Max Planck Society;

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Grulke, O.
VINETA, Max Planck Institute for Plasma Physics, Max Planck Society;
Stellarator Scenario Development (E5), Max Planck Institute for Plasma Physics, Max Planck Society;

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Klinger, T.
Stellarator Scenario Development (E5), Max Planck Institute for Plasma Physics, Max Planck Society;
VINETA, Max Planck Institute for Plasma Physics, Max Planck Society;

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Franck, C. M., Grulke, O., & Klinger, T. (2002). Magnetic fluctuation probe design and capacitive pickup rejection. Review of Scientific Instruments, 73, 3768-3771.

引用: https://hdl.handle.net/11858/00-001M-0000-0027-41AE-D

要旨

In this article the capacitive pickup of magnetic fluctuation probes for plasma applications is studied. The nine most commonly used probe designs are compared with respect to their capacitive pickup rejection, magnetic sensitivity, and minimum plasma disturbance. For absolute calibration, well defined electric and magnetic field fluctuations are produced separately in a Faraday cup and in a Helmholtz magnetic field coil configuration, respectively. A sample measurement in a radio frequency helicon plasma demonstrates that the optimum probe design is well suited for measuring magnetic fluctuations in a plasma environment. (C) 2002 American Institute of Physics.