Abstract
Through the use of high-speed camera and Langmuir probe measurements in a cylindrical Hall thruster, we report the discovery of a rotating spoke of increased plasma density and light emission which correlates with increased electron transport across the magnetic field. As cathode electron emission is increased, a sharp transition occurs where the spoke disappears and electron transport decreases. This suggests that a significant fraction of the electron current might be directed through the spoke.
| Original language | English (US) |
|---|---|
| Article number | 091501 |
| Journal | Applied Physics Letters |
| Volume | 97 |
| Issue number | 9 |
| DOIs | |
| State | Published - Aug 30 2010 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)