Kimball Lanthanum Hexaboride Cathodes for Electron Microscopes 电子显微镜用六硼化镧阴极

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. Kimball Physics ES-423E（长寿命）六硼化镧（LaB6）阴极是一种高性能、电阻加热的热离子电子源。目前，它被用于许多亮度受限的电子光学系统：SEM、TEM、探针、电子光刻系统等。LaB6的亮度至少比钨大一个数量级，在宽范围的加速电压下提供了卓越的分辨率，从而能够在电子显微镜应用中对最精细的细节进行清晰的成像。 FOR USE IN:

Scanning Electron Microscopes
Transmission Electron Microscopes
Electron Lithography Systems
Electron Probe Microanalysis
X-ray Micro-Analysis
Surface Analysis
Custom Applications

应用：扫描电子显微镜透射电子显微镜电子光刻系统电子探针微量分析 X射线显微分析曲面分析自定义应用程序 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

延长使用寿命在干净的真空中工作数千小时卓越的稳定性精密加工碳支座高温耐受性高亮度/低能量扩散 <100>定向单晶最佳质量/高纯度材料电流密度高达30 A/cm2 工作压力<10-7托精确的微平台卓越的光学性能受控源大小提供标准直径适用于大多数系统的底座陶瓷AEI底座或各种显微镜底座发射表面尺寸适合显微镜使用