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Carbon nanotube electron gun (Document No: 20110000773)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 2010 |
| Description | An electron gun, an electron source for an electron gun, an extractor for an electron gun, and a respective method for producing the electron gun, the electron source and the extractor are disclosed. Embodiments provide an electron source utilizing a carbon nanotube (CNT) bonded to a substrate for increased stability, reliability, and durability. An extractor with an aperture in a conductive material is used to extract electrons from the electron source, where the aperture may substantially align with the CNT of the electron source when the extractor and electron source are mated to form the electron gun. The electron source and extractor may have alignment features for aligning the electron source and the extractor, thereby bringing the aperture and CNT into substantial alignment when assembled. The alignment features may provide and maintain this alignment during operation to improve the field emission characteristics and overall system stability of the electron gun. |
| File Size | 1178786 |
| Page Count | 21 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20110000773 |
| Archival Resource Key | ark:/13960/t0ps2s044 |
| Language | English |
| Publisher Date | 2010-12-07 |
| Access Restriction | Open |
| Subject Keyword | Nuclear Physics High Aspect Ratio Alignment Carbon Nanotubes Electron Guns Electron Sources Substrates Electrons Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
