Statements (15)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
electrode
|
| gptkbp:appliesTo |
negative voltage
|
| gptkbp:controls |
electron emission
|
| gptkbp:function |
focuses electron beam
|
| https://www.w3.org/2000/01/rdf-schema#label |
Wehnelt cylinder
|
| gptkbp:inventedBy |
gptkb:Arthur_Wehnelt
|
| gptkbp:material |
metal
|
| gptkbp:placed_near |
cathode
|
| gptkbp:shape |
cylindrical
|
| gptkbp:used_in |
gptkb:X-rays
gptkb:electron_gun gptkb:electron_microscope vacuum tube |
| gptkbp:bfsParent |
gptkb:Arthur_Wehnelt
|
| gptkbp:bfsLayer |
5
|