Electron
Guns
Technical Superiority and Experience Matters
Electron
Guns
Technical Superiority and Experience Matters
High-voltage and optical design expertise
We supply both custom and production Electron Guns and Electron Sources for OEM’s and various research entities. Our Electron Guns and Electron Sources are used on Traveling Wave Tubes (TWT’s), Klystrons, X-ray Sources and primarily on linear accelerators for medical (oncology), industrial screening and national laboratory applications.
Electron guns are assembled by highly trained and skilled technicians who also have prior electron gun building ex perience. Absolute cleanliness and attention to detail is used to make all our electron guns. Several high magnification optical inspections and measurements are recorded during the build. Most electron guns are baked-out and stored in vacuum-tight metal canisters while some are also hi-potted (high-voltage processed and conditioned) and emission tested, where cathode roll-off curves are inspected for conformance.
Electrical Requirements
| Nominal | Range | |
| Perveance | 0.9 μpervs | .01 to 1.4 μpervs |
| Cathode Voltage | -12 kV | -9 to -15 kV |
| Heater Voltage | 5.0 V (Max.) | |
| Heater Current | 1.6 A (Max.) | |
| Leakage Cathode to Ground | 100μA (Max.) at 18 kV |
Cathode - Dispenser Type
| Coating | M-Type: 80% Os, 20% W |
| Mix | 5:3:2 with a molecular weight of 67.3% BaO, 14.8% CaO & 17.9% Al2O3 |
| Optional Mix | 3:1:1, 4:1:1, 6:1:2 |
Performance
| Nominal | Range | |
| Emission | 1200 mA | 0-1500 mA |
Electrical Requirements
| Nominal | Range | |
| Perveance | 0.3 μpervs | .01 to .4 μpervs |
| Cathode Voltage | -18 kV | -15 to –20 kV |
| Heater Voltage | 5.5 V (Max.) | |
| Heater Current | 1.6 A (Max.) | |
| Leakage Cathode to Ground | 100μA (Max.) at 20 kV |
Cathode - Dispenser Type
| Coating | M-Type: 80% Os, 20% W |
| Mix | 4:01:01 |
| Optional Mix | 3:1:1, 5:3:2, 6:1:2 |
Performance
| Nominal | Range | |
| Emission | 600 mA | 0-750 mA |

