Messung hoher Elektronendichten mit einer neuartigen Mikrowellen-Reflexionssonde an einem linearen z-Pinch
Open Access
- 1 September 1966
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung A
- Vol. 21 (9) , 1471-1478
- https://doi.org/10.1515/zna-1966-0921
Abstract
A microwave reflection probe method allowing the local measurement of electron densities well above the critical density is described. Measurements in the 35 Gc/s band on a z-pinch show its applicability. A rectangular waveguide with a dielectric aperture window serves as a probe. The interferometer for measuring the reflection coefficient is presented. It indicates phase angle and amplitude automatically without using modulators or frequency translators. Electron densities between about 1013 cm-3 and 1016 cm-3 could be measured, facilitated by the transforming action of a dielectric λ/4-window.Keywords
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