The time-varying electron energy distribution function in the plume of a Hall thruster; Plasma Sources Science and Technology; Vol. 23, iss. 6
| Parent link: | Plasma Sources Science and Technology.— , 1992- Vol. 23, iss. 6.— 2014.— [065001] |
|---|---|
| Autor kompanije: | |
| Daljnji autori: | , , , |
| Sažetak: | Title screen Time-resolved Langmuir probe measurements have been performed in the plume of the 1.5 kW class PPS®1350-ML Hall thruster. The time-dependent electron energy distribution function (EEDF) has been inferred from the probe current-voltage characteristic curves obtained after active stabilization of the discharge. The distribution function changes in the course of time at the breathing oscillation frequency (13.8 kHz). The EEDF is Maxwellian with a depleted tail above the xenon ionization energy whatever the location and the time. The electron density and temperature computed from the EEDF also oscillate at the breathing mode frequency. Experimental outcomes indicate the existence of a low-frequency plasma wave that propagates axially. The wave front speed (2700 m s−1) was found to be compatible with the ion acoustic speed (2300 m s−1). Режим доступа: по договору с организацией-держателем ресурса |
| Jezik: | engleski |
| Izdano: |
2014
|
| Teme: | |
| Online pristup: | http://dx.doi.org/10.1088/0963-0252/23/6/065001 |
| Format: | Elektronički Poglavlje knjige |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=644907 |
| Sažetak: | Title screen Time-resolved Langmuir probe measurements have been performed in the plume of the 1.5 kW class PPS®1350-ML Hall thruster. The time-dependent electron energy distribution function (EEDF) has been inferred from the probe current-voltage characteristic curves obtained after active stabilization of the discharge. The distribution function changes in the course of time at the breathing oscillation frequency (13.8 kHz). The EEDF is Maxwellian with a depleted tail above the xenon ionization energy whatever the location and the time. The electron density and temperature computed from the EEDF also oscillate at the breathing mode frequency. Experimental outcomes indicate the existence of a low-frequency plasma wave that propagates axially. The wave front speed (2700 m s−1) was found to be compatible with the ion acoustic speed (2300 m s−1). Режим доступа: по договору с организацией-держателем ресурса |
|---|---|
| Digitalni identifikator objekta: | 10.1088/0963-0252/23/6/065001 |