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Electron Microscopy Sciences Denka Cathode M-3 LaB6, Cambridge, Flat, 60° cone Angle
Supplier: Electron Microscopy Sciences 8090680
Lanthanum Hexaboride is the optimum cathode material for use in SEM, TEM, X-Ray Microanalysis, and Electron Beam Lithography and is a direct replacement for tungsten filaments. It features low potential barrier (work function), high melting point and stability at high temperatures, a low vapor pressure that reduces evaporation lost, and chemical stability. The LaB6 beam is ten times brighter than tungsten, has superior resolution and can be used in a wide range of accelerating voltages. It provides sharp and clear pictures even to the smallest details. Heat and vacuum are the determinants of cathode tip's life, but at 1550 °C and 10-7 Torr, a service life of about 500 hours can be achieved.
Use: Cambridge
Type: Flat
Angle: 60° cone
Radius: 80 µm
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