Electron Source
Applied Physics Technologies manufactures electron sources used primarily for analysis and inspection equipment and metal 3D printers.
Main products
CeBix®
| Materials | Cerium Hexaboride(CeB6) |
|---|---|
| Features | Long lifetime, High brightness, Contaminate Resistant(Comparison with LaB6) |
| Application | Scanning Electron Microscope (SEM),Transmission Electron Microscope (TEM),Electron Beam Microanalyzer (EPMA)Surface Analyzer,Metal 3D printer,Micro Focus X-Ray source,Lithography equipment, etc. |
LaB6
| Materials | Lanthanum Hexaboride (LaB6) |
|---|---|
| Features | Long lifetime, High brightness (Comparison with Tungsten Filament). |
| Application | Scanning Electron Microscope (SEM),Transmission Electron Microscope (TEM),Electron Beam Microanalyzer (EPMA)Surface Analyzer,Metal 3D printer,Micro Focus X-Ray source,Lithography equipment, etc. |
REFRACTORY METAL SINGLE CRYSTALS
| Materials | W, Ta, Mo, Re, Ir, Hc, Pt, Ni, etc.  |
|---|---|
| Features | Manufacturing High Purity and High Quality Single Crystals by Zone Refining Process with In-house Equipment. |
| Application | SEM, TEM, Semiconductor Analysis Equipment, X-Ray Tube, EPMA, Lithography Equipment, etc. |
TRANSITION METAL CARBIDE CATHODES
| Materials | HfC, ZrC, TiC, NbC, etc.  |
|---|---|
| Features | High Melting Point, High Durability, Lower Evaporation (Long Lifetime) High Performance under Poor Vacuum Environment |
| Application | Better Performance With Replacing Current Thermal Emission Source, Materials for R&D, Various Electron Source Application, etc. |
Type of electron source
| Comparison Item | Thermionic Source (W) | Thermionic Source (LaB6/CeBix®) | Schottky (SE) Electron Source | Field Emission(FE)Electron Source |
|---|---|---|---|---|
| Electron Beam Emission Method | Heat W Hairpin Filament | Heat a Small Single Crystal | Heating and Applying High Voltage to Needle Metal (Use Schottky Effect) | Application of High Voltage to Needle Metal (Use Tunnel Effect) |
| Brightness | △ | 〇 | ◎ | ◎+ |
| Monochromaticity | ✕ | △ | 〇 | ◎ |
| Resolution | △ | 〇 | ◎ | ◎+ |
| Amperage | 〇 | ◎ | ◎ | △ |
| Stability | ◎ | 〇 | ◎ | △ |
| Lifetime | △ | 〇 | ◎ | 〇 |
| Cost | ◎ | 〇 | △ | 〇 |
| Handle ability | ◎ | 〇 | 〇 | △ |
