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Time-resolved laser-Doppler measurements in a high-current arc plasma
| Content Provider | Scilit |
|---|---|
| Author | Todorovic, P. S. Jones, G. R. Barrault, M. R. |
| Copyright Year | 1976 |
| Description | Journal: Journal of Physics D: Applied Physics A symmetrical laser-Doppler system has been used for the measurement of velocities in a free-burning arc plasma. A self-triggering raster display system has been developed to record high-frequency ( approximately 10 MHz) Doppler signals over extended periods of time (several ms), so that measurements can be made of rapidly changing velocities in highly accelerated flows over prolonged periods of time. An approximate correlation between signal frequency and amplitude has been established and a simplified theoretical description given of the motion of evaporating particles in a plasma flow. The method has yielded not only information about the time evolution of the plasma flow velocity across the arc cross section, but also an estimate of the spatial distribution of globular electrode material throughout the arc as a function of time after arc initiation. |
| Related Links | http://iopscience.iop.org/article/10.1088/0022-3727/9/3/008/pdf |
| Ending Page | 434 |
| Page Count | 12 |
| Starting Page | 423 |
| ISSN | 00223727 |
| e-ISSN | 13616463 |
| DOI | 10.1088/0022-3727/9/3/008 |
| Journal | Journal of Physics D: Applied Physics |
| Issue Number | 3 |
| Volume Number | 9 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 1976-03-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics D: Applied Physics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Acoustics and Ultrasonics Condensed Matter Physics Electronic, Optical and Magnetic Materials |
