| EPSRC Reference: |
GR/N01712/01 |
| Title: |
NOVEL VACUUM TECHNOLOGY FOR COMPACT TERAHERTZ FREQUENCY SOURCES |
| Principal Investigator: |
Chamberlain, Professor JM |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Physics and Astronomy |
| Organisation: |
University of Leeds |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 July 2000 |
Ends: |
30 June 2002 |
Value (£): |
158,066
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| EPSRC Research Topic Classifications: |
| Instrumentation Eng. & Dev. |
Microsystems |
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| EPSRC Industrial Sector Classifications: |
| Manufacturing |
Communications |
| Electronics |
Food and Drink |
| Healthcare |
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| Panel History: |
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Summary on Grant Application Form |
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This Proposal offers a novel solution to the problem of radiation sources in the terahertz gap; such sources have commercially significant applications in imaging (including medical imaging, especially of teeth, skin and near-surface joints) communications, surveillance and sensing. Vacuum tube technology (e.g. as used in the klystron ) is re-invented using two new technologies: micromachining and field emitter (FE) electron sources. These are natural methods to extend the frequency range of vacuum tubes into the terahertz (THz) region, and to make devices compact and operate at low voltages (100V). The result is a completely new class of device, with individual output powers in the millwatt range, which might also be integrated with a mixer in a detector, or combined with several other devices as a powerful terahertz source in an array system. The chosen demonstrator is a klystron this will be constructed using a high current FE array source and an on-chip electrostatic lens. Initially, a re-entrant cavity structure will be built by conventional machining technology, and both units will be assembled as a reflex klystron operating at 500GHz. The cavity and refelector will then be fabricated by micromaching techniques and combined with field emitter array in a vacuum encapsulated device.Keywords describing areas of proposalterahertz source, field emitters, micromachining, klystron, vacuum device
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.leeds.ac.uk |