Phenom uses CeB6 filament with a work function of 2.5 eV. Its brightness is 10 times that of tungsten filament. The chromatic aberration of the emitted electrons is small, providing you with higher quality images. Its service life is up to 1500 hours, which is 10 times that of tungsten filament. It can be used normally for 2-3 years without replacing the filament, which saves you the trouble of frequently replacing the filament and ensures the progress of the work.
Phenom uses low vacuum technology. The emitted electrons collide with air molecules to generate positive ions. The positive ions neutralize the electrons accumulated on the sample surface, effectively suppressing the generation of charging effects, and directly observing various non-conductive samples. By using the reduces the charge sample holder, the magnification of initial charging can be increased by about 8 times, meanwhile it doesn't affect the filament life.
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