| English | German |
| particle orbit | Umlaufbahn des Teilchens (closed or nearly closed, in a cyclic accelerator) |
| particle orbit | Teilchenumlaufbahn (closed or nearly closed, in a cyclic accelerator) |
| particle orbit | Teilchenbahn (closed or nearly closed, in a cyclic accelerator) |
| particle orbit contractor | Teilchenbahnkontraktor |
| particle orbit contractor | Bahnkontraktor |
| particle orbit expander | Teilchenbahnexpander |
| particle orbit expander | Teilchenbahndehner |
| particle orbit expander | Bahnexpander |
| particle orbit expander | Bahndehner |