Optimization of an X-band Interferometer for Plasma Diagnostics†

Cronin, J. C.; Sexton, M. C.

doi:10.1080/00207216708937992

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1970

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“…Approximately square wave current pulses, of up to 320 A, of duration 40-100 ps, were obtainable. A detailed description of the pulse-forming network and vacuum system and its capabilities are given elsewhere (Cronin and Sexton 1967). Discharge tubes of diameters 12-6 and 10.2 cm were used.…”

Section: Methodsmentioning

confidence: 99%

Thermal conduction energy loss in a helium afterglow

Donovan¹,

Sexton²

1970

J. Phys. D: Appl. Phys.

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A free-space microwave interferometer (35 GHz) is used to monitor the acoustic standing waves excited by the ionizing discharge in low-pressure helium afterglows. From the frequency of these waves, the decaying gas temperature is evaluated. Theoretical calculations, based on heat loss by atom thermal conduction only, give very good agreement with the experimental results over a wide range of plasma conditions.

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Section: Methodsmentioning

confidence: 99%