In order to achieve electron emission at low voltages, field emitter array tips are built on a micrometer-level scale sizes.
32.
A rendezvous also would have permitted researchers to study the effects of electron emissions from the shuttle on the satellite.
33.
Child's law predicted the current at lower positive voltages, at which the current isn't limited by the electron emission process.
34.
Cold cathodes rely on field electron emission or secondary electron emission from positive ion bombardment and do not require heating.
35.
Improved methods include creating an electron emitter, such as a thermionic cathode, plasma cathode, plasma contactor, or field electron emission device.
36.
Field electron emission, which tends to reduce the negative potential, can be important due to the small size of the particles.
37.
It also increases with greater frequencies due to a greater probability of electron emission when collisions happen with higher energy photons.
38.
There are other electron emission regimes ( such as " Schottky emission " ) that require significant external heating of the emitter.
39.
When a voltage is applied to these probes, electrons are emitted from the tips through a process known as field electron emission.
40.
For any particular material, there is a threshold frequency that must be exceeded, independent of light intensity, to observe any electron emission.
