Description
The Kimball Physics ES-423E (Extended Life) Lanthanum Hexaboride (LaB6) Cathode is a high performance, resistively heated, thermionic electron source. It is currently employed in many brightness-limited electron optical systems: SEM’s, TEM’s, probes, electron lithography systems, and more. With brightness at least an order of magnitude greater than tungsten, LaB6 provides superior resolution in a wide range of acceleration voltages to enable clear imaging of the finest details in electron microscopy applications.
FOR USE IN:
- Scanning Electron Microscopes
- Transmission Electron Microscopes
- Electron Lithography Systems
- Electron Probe Microanalysis
- X-ray Micro-Analysis
- Surface Analysis
- Custom Applications
FEATURES / OPTIONS:
- Extended Lifetime
- Thousands of functional hours in clean vacuum
- Exceptional Stability
- Precision machined carbon mounting
- High over-temperature tolerance
- High Brightness / Low Energy Spread
- <100> Oriented Single Crystal
- Best Quality / High Purity Material
- Current densities up to 30 A/cm2
- Operating pressure < 10-7 torr
- Accurate Microflats
- Superior Optics
- Controlled Source Size
- Standard Diameters Available
- Bases Available for Most Systems
- Ceramic AEI base or various microscope bases
- Emission surfaces sized for microscope use
