Pressure dependence of the electrical potential and electron temperature in a microwave-generated plasma
| Autor: | L.Z. Ismail, A.A. El-Magd |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Nuclear and High Energy Physics
Materials science Physics::Instrumentation and Detectors Atmospheric-pressure plasma Plasma Condensed Matter Physics symbols.namesake Physics::Plasma Physics Electric field Torr symbols Langmuir probe Electron temperature Plasma diagnostics Physics::Atomic Physics Atomic physics Microwave |
| Zdroj: | IEEE Transactions on Plasma Science. 20:57-61 |
| ISSN: | 0093-3813 |
| DOI: | 10.1109/27.134024 |
| Popis: | The electron temperature in a stationary hydrogen plasma has been studied using a Langmuir probe. The measurements have been carried out over the pressure range from 3 mbar (2.25 torr) to 25 mbar (18.75 torr). The applied microwave power was varied from 50 to 450 W. The electron temperature shows a linear dependence on the applied microwave power. The self-space-charge field (in volts) of a hydrogen plasma shows a saturation behavior at higher microwave powers. The maximum value at the saturation of the field equals 6.8 V at a gas pressure of 15 mbar (11.25 torr) for all values of the input microwave radiation power. The polarities of the self-space-charge electric field are similar above this value and below it. > |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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