Filaments for JEOL (K Type) (Box of 6)

K-type filaments are pre-aligned hairpin filaments for use in Transmission electron microscopes. When installing a new filament we recommend using newly cleaned (and carefully dried) cathode and anode
assemblies. For optimum gun performance it is important that the K-type filament be set precisely at the Correct height with respect to the Wehnelt.

Tungsten filaments are made with specially designed jigs which ensure accuracy and reproducibility in production. High-ductility tungsten wire is used to minimise strain. All filaments are stress relieved by flashing in a vacuum at temperatures above the normal operating level and are then checked for accuracy of centring. Filament assemblies having alignment screws are subsequently adjusted using a light microscope to ensure that they are ready for immediate operation in the electron microscope.

For more information download the MSDS sheet here