This information will be used to develop the specifications for the required electron gun, or an electron emitter
, that will expel excess electrons from the spacecraft to maintain the wires positive voltage bias, which is critical to its operation as a propulsion system.
Specifically, a KMgF3 thin film acting as a solid-state phosphor and carbon nanofiber (CNF) field electron emitter
has previously been incorporated into a VUV lamp .
Active matrix liquid crystal display (AM-LCD), surface conduction electron emitter
display (SED), and organic light emitting diode (OLED) display technologies are legitimate candidates for market dominance over the next 10 years.
Some application areas described are phosphorous doped diamond electron emitter
devices, performance of epitaxial diamond in the field of X-ray diagnostics, single crystal CVD diamond growth for detection device fabrication, and diamond nanoparticles as photoluminescent nanoprobes for biology.
 Field electron emitter
: A device that extracts electrons from a fixed surface employing an electrical field.
On the outlook for the surface-conduction electron emitter
display TVs which Toshiba is developing with Canon Inc., Nishida said his company has high hopes for SED TVs' potential in view of the ultra-high image quality the SED technology enables.
Also, lead found in solders used for machined thru-hole discoidal and planar array ceramic multilayer capacitors, and lead oxide in plasma display panels and surface conduction electron emitter
displays used in structural elements (notably in the front and rear glass dielectric layer, the bus electrode, the black stripe, the address electrode, the barrier ribs, the seal frit, the frit ring and in print pastes) will qualify for exempt status.
The Electra group reported on a new electron emitter
based on a carbon fiber array supplied by ESLI, Inc.
The Skion system replaces the gun with a flat oxidized-cesiated-diamond film, which performs as a cold cathode electron emitter
structure placed a short distance behind the phosphor screen.
A triode-type thermionic electron emitter
commonly used in SEMs and TEMs has a relatively large tip, so the electric field around it is relatively low.
Emerging concepts requires three or four orders of magnitude of power increase (tens of megawatts to gigawatts), which stretches the limits of electron emitter
emission, voltage breakdown and material technology.
The nine-month project will see Evince embed tens of thousands of nano-scale electron emitters
in a diamond substrate that could replace the heated source currently used in propulsion systems.