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http://hdl.handle.net/1903/3129
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| Title: | LINEAR AND NONLINEAR ANALYSIS OF A GYRO-PENIOTRON OSCILLATOR AND STUDY OF START-UP SCENARIO IN A HIGH ORDER MODE GYROTRON |
| Authors: | Yeddulla, Muralidhar |
| Advisors: | Antonsen, Thomas
Nusinovich, Gregory |
| Department/Program: | Electrical Engineering |
| Type: | Dissertation |
| Sponsors: | Digital Repository at the University of Maryland
University of Maryland (College Park, Md.) |
| Keywords: | Engineering, Electronics and Electrical (0544)
Physics, Fluid and Plasma (0759)
Physics, Electricity and Magnetism (0607)
Gyrotron, gyro-peniotron, electron beam, mode competition, high order mode |
| Issue Date: | 31-Jan-2006 |
| Abstract: | The Cyclotron Resonant Maser (CRM) is a device in which electrons gyrating in an external magnetic field produce coherent EM radiation. A DC electron beam current must be converted to an AC beam current to create RF energy. There are two possible approaches: phase bunching (O-type) and spatial segregation (Mtype). In phase bunching, electrons are either accelerated or decelerated depending on when the electrons enter the interaction region, causing phase bunching. The electron bunches are then slowed down by the RF field for energy extraction. Not all electrons lose energy; some even gain energy. In spatial segregation, electrons entering the interaction region at different times are deflected in different directions. With an appropriate spatially varying RF field, all electrons can lose energy leading to very high conversion efficiency. A CRM with a smooth walled cylindrical waveguide interaction cavity and an annular electron beam passing through it can generate very large amount of... |
| URI: | http://hdl.handle.net/1903/3129 |
| Appears in Collections: | Electrical & Computer Engineering Theses and Dissertations
UM Theses and Dissertations
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Size | Format | No. of Downloads |
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| umi-umd-2946.pdf | | 1317Kb | Adobe PDF | 297 | View/Open |
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