While electron sources based on field emission have a number of applications, field emission is most commonly an undesirable primary source of charge-neutralizers.
32.
X-ray diffraction ( XRD ), Rietveld refinements and field emission scanning electron microscopy ( FESEM ) were employed in structural and morphological characterizations.
33.
However, field emission can take place from solid or liquid surfaces, into vacuum, air, a fluid, or any non-conducting or weakly conducting dielectric.
34.
While electron sources based on field emission have a number of applications, field emission is most commonly an undesirable primary source of charge-neutralizers.
35.
The "'atom probe "'was introduced at the 14th Field Emission Symposium in 1967 by Erwin Wilhelm M�ller and J . A . Panitz.
36.
SEDs are closely related to another developing display technology, the field emission display, or FED, differing primarily in the details of the electron emitters.
37.
So to study it we will keep the field emission probes which will emit electrons as soon as a voltage is applied across it.
38.
As the voltage was erected across the electrodes, field emission from the thin wire resulted in a sheet discharge between itself and the anode.
39.
Nowadays, the facility to simulate field emission from Mueller emitters is often incorporated into the commercial electron-optics programmes used to design electron beam instruments.
40.
Relying on the unique properties of the CNTs, researchers have developed field emission cathodes that allow precise x-ray control and close placement of multiple sources.
