Scanning electron microscope cathode, SEM

Numéro d’image : 12526101
Scanning electron microscope cathode, SEM
Scanning electron microscope cathode. Coloured scanning electron micrograph (SEM) of a damaged cathode for an old scanning electron microscope. The cathode, or electron gun, is a component that produces the electron beams used by the scanning electron microscope. This cathode contains lanthanum hexaboride (LaB6), an inorganic ceramic material that has a very low work function, which means that it takes very little energy to initiate an electron flow from its surface. This cathode has burnt out and needs to be replaced. Magnification: x170 when printed 10 centimetres wide.
Licence : Droits gérés
Crédit: Science Photo Library / EYE OF SCIENCE
Taille de l’image : 4790 px × 3685 px
Model Release : Non requis
Property Release : Non requis
Restrictions :
  • All moral rights asserted. Recolouring or alteration of the image is prohibited without permission.

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