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

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