DENKA M-3 LaB6 Filaments / Cathodes
DENKA M-3 lanthanum hexaboride (LaB6) filaments are single-crystal electron-gun cathodes offered as a higher-brightness alternative to tungsten hairpin filaments.
Manufacturer: SPI Supplies — USA
Overview
DENKA M-3 lanthanum hexaboride (LaB6) filaments are single-crystal electron-gun cathodes offered as a higher-brightness alternative to tungsten hairpin filaments. LaB6 cathodes provide higher electron-source brightness and longer service life than tungsten, making them the preferred emitter for higher-resolution SEM and TEM work. SPI Supplies stocks brand-specific LaB6 cathodes engineered to fit the gun geometry of particular instrument manufacturers rather than a single universal design. Each cathode is sold individually and installed as a direct replacement in the existing electron gun assembly.
Instrument-Specific Cathodes
LaB6 cathodes are offered for Amray/Philips systems, Hitachi instruments, LEO/Leica/Cambridge systems, ISI instruments (separate cathodes for TEM and SEM configurations), JEOL K-type guns, and Zeiss/Tescan systems, each machined to the corresponding gun mounting geometry.
Specifications
| Specification | DENKA M-3 LaB6 Filaments / Cathodes |
|---|---|
| Material | Lanthanum hexaboride (LaB6), DENKA M-3 |
| Cathode form | Single crystal |
| Application | SEM and TEM electron gun cathode |
| Packaging | Each |
| Compatible instrument brands | Amray/Philips, Hitachi, LEO/Leica/Cambridge, ISI, JEOL, Zeiss/Tescan |