| タイトル | Guiding center model to interpret neutral particle analyzer results |
| 本文（外部サイト） | http://hdl.handle.net/2060/19740019120 |
| 著者（英） | Reinmann, J. J.; Lauver, M. R.; Englert, G. W. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1974-01-01 |
| 言語 | eng |
| 内容記述 | The theoretical model is discussed, which accounts for drift and cyclotron components of ion motion in a partially ionized plasma. Density and velocity distributions are systematically precribed. The flux into the neutral particle analyzer (NPA) from this plasma is determined by summing over all charge exchange neutrals in phase space which are directed into apertures. Especially detailed data, obtained by sweeping the line of sight of the apertures across the plasma of the NASA Lewis HIP-1 burnout device, are presented. Selection of randomized cyclotron velocity distributions about mean azimuthal drift yield energy distributions which compared well with experiment. Use of data obtained with a bending magnet on the NPA showed that separation between energy distribution curves of various mass species correlate well with a drift divided by mean cyclotron energy parameter of the theory. Use of the guiding center model in conjunction with NPA scans across the plasma aid in estimates of ion density and E field variation with plasma radius. |
| NASA分類 | PHYSICS, PLASMA |
| レポートNO | 74N27233
E-7980
NASA-TM-X-71555 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/194269 |
