Kimball Yttria Coated Iridium Disc Cathodes 氧化釔陰極

Kimball Yttria Coated Iridium Disc Cathodes 氧化釔陰極

 

Description

Kimball Physics offers a?Yttria Coated Iridium Disc Cathode. In addition to being a ruggedized thermionic emitter that resists oxidation, these cathodes provide stable and uniform electron emission for a wide variety of electron source applications, especially where vacuum conditions are not ideal. The cathode structure of the ES-535, ES-526, and ES-529 consists of a yttrium oxide coated iridium disc that is heated by conduction from an iridium hairpin and mounted on an AEI or a Kimball Physics base. The ES-535W consists of a yttrium oxide coated iridium disc with tungsten hairpin in place of the iridium hairpin. Other bases are available on a custom basis.

Kimball Physics提供釔涂層銥盤陰極。除了是一種抗氧化的加固熱離子發射器外，這些陰極還為各種電子源應用提供了穩定和均勻的電子發射，尤其是在真空條件不理想的情況下。ES-535、ES-526和ES-529的陰極結構由氧化釔涂覆的銥盤組成，該銥盤通過銥發夾的傳導而加熱，并安裝在AEI或Kimball Physics基座上。ES-535W由一個氧化釔涂層銥盤組成，用鎢發夾代替銥發夾。其他基地也可定制。

  • Chemically resistant
  • Operating pressure < 10-4?torr for lr heater
  • Operating pressure < 10-5?torr for W heater
  • Low work function
  • Current densities up to 0.5 A/cm2
  • Disc emission up to 10 mA
  • 3 disc sizes
  • On AEI or compact CB-105 bases

耐化學性

lr加熱器的工作壓力<10-4托

W加熱器的工作壓力<10-5托

功函數低

電流密度高達0.5 A/cm2

圓盤發射高達10 mA

3種尺寸

提供AEI或緊湊型CB-105底座

 


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