Laser measurements of ion velocities in plasmas
The behavior of the dominant ground state N2+ ion in a RF plasma struck in molecular nitrogen is studied. Two types of experiments are carried out, with the beam either parallel or perpendicular to the driven electrode. In the first measurement, changing the height of the laser beam above the driven...
| Main Authors: | , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
IEE
1997
|
| _version_ | 1826281312643710976 |
|---|---|
| author | Woodcock, B Freegarde, T Hancock, G |
| author_facet | Woodcock, B Freegarde, T Hancock, G |
| author_sort | Woodcock, B |
| collection | OXFORD |
| description | The behavior of the dominant ground state N2+ ion in a RF plasma struck in molecular nitrogen is studied. Two types of experiments are carried out, with the beam either parallel or perpendicular to the driven electrode. In the first measurement, changing the height of the laser beam above the driven electrode gives information on the concentration dependence of the ions as a function of distance, h. The Doppler profile gives the ions' velocity components parallel to the electrode. For measurements perpendicular to the electrode, careful fluorescence imaging allows the determination of the perpendicular velocity components as a function of h, and the effect of the changing field on the velocity distribution through the sheath region can be explored. |
| first_indexed | 2024-03-07T00:26:55Z |
| format | Journal article |
| id | oxford-uuid:7e7271c0-77d1-48ef-ad62-5b0a146b8877 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:26:55Z |
| publishDate | 1997 |
| publisher | IEE |
| record_format | dspace |
| spelling | oxford-uuid:7e7271c0-77d1-48ef-ad62-5b0a146b88772022-03-26T21:10:12ZLaser measurements of ion velocities in plasmasJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7e7271c0-77d1-48ef-ad62-5b0a146b8877EnglishSymplectic Elements at OxfordIEE1997Woodcock, BFreegarde, THancock, GThe behavior of the dominant ground state N2+ ion in a RF plasma struck in molecular nitrogen is studied. Two types of experiments are carried out, with the beam either parallel or perpendicular to the driven electrode. In the first measurement, changing the height of the laser beam above the driven electrode gives information on the concentration dependence of the ions as a function of distance, h. The Doppler profile gives the ions' velocity components parallel to the electrode. For measurements perpendicular to the electrode, careful fluorescence imaging allows the determination of the perpendicular velocity components as a function of h, and the effect of the changing field on the velocity distribution through the sheath region can be explored. |
| spellingShingle | Woodcock, B Freegarde, T Hancock, G Laser measurements of ion velocities in plasmas |
| title | Laser measurements of ion velocities in plasmas |
| title_full | Laser measurements of ion velocities in plasmas |
| title_fullStr | Laser measurements of ion velocities in plasmas |
| title_full_unstemmed | Laser measurements of ion velocities in plasmas |
| title_short | Laser measurements of ion velocities in plasmas |
| title_sort | laser measurements of ion velocities in plasmas |
| work_keys_str_mv | AT woodcockb lasermeasurementsofionvelocitiesinplasmas AT freegardet lasermeasurementsofionvelocitiesinplasmas AT hancockg lasermeasurementsofionvelocitiesinplasmas |