| 摘要 |
The particle collection device comprises an electrically conductive part (2a) for collecting charged particles which is surrounded by a relatively large electrically insulating body (2b) so that charged particles can only reach the conductive part from one side. - The ioniser (1) includes electron emitting devices (5-7) and a collector (4) for the charged particles. The partial collection device is electrically connected to the collector. |
