FIELD: physics.
SUBSTANCE: filament-type cathode is designed for vacuum-tube devices, particularly X-ray tubes. The cathode emitter is double-layered, where the support is made from refractory metal or alloy, and the electron-emitting layer is made from a metal with less work function than material of the support, doped with one of the components of the material of the support.
EFFECT: increased stability of emission characteristics and longer service life.
9 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| FILAMENTARY CATHODE AND ITS MANUFACTURING PROCESS | 2006 |
|
RU2314592C1 |
| X-RAY TUBE | 2008 |
|
RU2377686C1 |
| METHOD FOR MANUFACTURING OF ELECTRON EMITTERS AND DEVICE FOR ITS IMPLEMENTATION | 2010 |
|
RU2447537C1 |
| COLD-EMISSION CATHODE AND FLAT-PANEL DISPLAY | 2000 |
|
RU2210134C2 |
| METHOD FOR PRODUCING ADDRESSED AUTOEMISSION CATHODE AND DISPLAY STRUCTURE BUILT AROUND IT | 2000 |
|
RU2194329C2 |
| MAGNETRON HAVING TRIGGERING EMITTERS AT END SHIELDS OF CATHODE ASSEMBLIES | 2011 |
|
RU2528982C2 |
| POLYCRYSTALLINE ABRASIVE MATERIALS AND METHOD OF THEIR FABRICATION | 2005 |
|
RU2404021C2 |
| MULTILAYER SHEET MATERIAL AND ITS VERSION | 1997 |
|
RU2139793C1 |
| EXTRACTION OF LIQUID ELEMENTS BY ELECTROLYSIS OF OXIDES | 2011 |
|
RU2585904C2 |
| METHOD FOR PRODUCING METAL POROUS CATHODE | 2014 |
|
RU2583161C1 |
