High‐power coherent microwave generation from oscillating virtual cathodes
The formation of an oscillating virtual cathode by a relativistic electron beam and the subsequent generation of coherent microwaves are investigated. If the electron beam is of high quality, the microwaves excited in a cylindrical waveguide are found to occupy a very narrow band (Δω/ω∼5%) primarily...
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| Veröffentlicht in: | Phys. Fluids; (United States) 1984-01, Vol.27 (1), p.228-232 |
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| container_title | Phys. Fluids; (United States) |
| container_volume | 27 |
| creator | Kwan, Thomas J. T. |
| description | The formation of an oscillating virtual cathode by a relativistic electron beam and the subsequent generation of coherent microwaves are investigated. If the electron beam is of high quality, the microwaves excited in a cylindrical waveguide are found to occupy a very narrow band (Δω/ω∼5%) primarily in a single transverse magnetic mode. Furthermore, the efficiency of microwave production is demonstrated in our computer simulations to be as high as 20%. It is also shown quantitatively that the efficiency decreases monotonically as the mean scattering angle of the electron beam increases. |
| doi_str_mv | 10.1063/1.864517 |
| format | Article |
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T.</creatorcontrib><creatorcontrib>Theoretical Applications Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545</creatorcontrib><title>High‐power coherent microwave generation from oscillating virtual cathodes</title><title>Phys. Fluids; (United States)</title><description>The formation of an oscillating virtual cathode by a relativistic electron beam and the subsequent generation of coherent microwaves are investigated. If the electron beam is of high quality, the microwaves excited in a cylindrical waveguide are found to occupy a very narrow band (Δω/ω∼5%) primarily in a single transverse magnetic mode. Furthermore, the efficiency of microwave production is demonstrated in our computer simulations to be as high as 20%. It is also shown quantitatively that the efficiency decreases monotonically as the mean scattering angle of the electron beam increases.</description><subject>640440 - Fluid Physics- Electrohydrodynamics</subject><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>700108 - Fusion Energy- Plasma Research- Wave Phenomena</subject><subject>BEAMS</subject><subject>CATHODES</subject><subject>COHERENT RADIATION</subject><subject>COMPUTERIZED SIMULATION</subject><subject>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</subject><subject>CONFIGURATION</subject><subject>CYLINDRICAL CONFIGURATION</subject><subject>Design of specific laser systems</subject><subject>ELECTRODES</subject><subject>ELECTROMAGNETIC RADIATION</subject><subject>ELECTRON BEAMS</subject><subject>ENERGY RANGE</subject><subject>Exact sciences and technology</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Laser optical systems: design and operation</subject><subject>LEPTON BEAMS</subject><subject>MICROWAVE RADIATION</subject><subject>Optics</subject><subject>OSCILLATIONS</subject><subject>PARTICLE BEAMS</subject><subject>Physics</subject><subject>RADIATIONS</subject><subject>RELATIVISTIC RANGE</subject><subject>SIMULATION</subject><subject>WAVEGUIDES</subject><issn>0031-9171</issn><issn>2163-4998</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1984</creationdate><recordtype>article</recordtype><recordid>eNp10MFKwzAcBvAgCs4p-AhFRPTQmTRp2h5lqBMGXvQcsuTfNdI2M8k2vPkIPqNPYmaHN8khEH58fPkQOid4QjCnt2RScpaT4gCNMsJpyqqqPEQjjClJK1KQY3Ti_RvGGSOMjtB8ZpbN9-fXym7BJco24KAPSWeUs1u5gWQJPTgZjO2T2tkusV6Zto0P_TLZGBfWsk2UDI3V4E_RUS1bD2f7e4xeH-5fprN0_vz4NL2bp4qWOKRS84JIYJqXuZJay4xTrRc4oxo0LHJdSExyXDGooCw1qziFeDCWEoBQRsfoYsi1PhgRCwVQjbJ9DyqInNG84kVEVwNaOfu-Bh9EZ7yC2L0Hu_YiY1lWcLKD1wOMX_beQS1WznTSfQiCxW5TQcSwaaSX-0zplWxrJ3tl_J-vOCa4pJHdDGxX7Xe7_yN_AKZchKY</recordid><startdate>198401</startdate><enddate>198401</enddate><creator>Kwan, Thomas J. T.</creator><general>American Institute of Physics</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>198401</creationdate><title>High‐power coherent microwave generation from oscillating virtual cathodes</title><author>Kwan, Thomas J. T.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c380t-ad671ae4d685cadda263ddb023dedeb5d7a015094e9e88d4963e3e300aaee1343</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1984</creationdate><topic>640440 - Fluid Physics- Electrohydrodynamics</topic><topic>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</topic><topic>700108 - Fusion Energy- Plasma Research- Wave Phenomena</topic><topic>BEAMS</topic><topic>CATHODES</topic><topic>COHERENT RADIATION</topic><topic>COMPUTERIZED SIMULATION</topic><topic>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</topic><topic>CONFIGURATION</topic><topic>CYLINDRICAL CONFIGURATION</topic><topic>Design of specific laser systems</topic><topic>ELECTRODES</topic><topic>ELECTROMAGNETIC RADIATION</topic><topic>ELECTRON BEAMS</topic><topic>ENERGY RANGE</topic><topic>Exact sciences and technology</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>Laser optical systems: design and operation</topic><topic>LEPTON BEAMS</topic><topic>MICROWAVE RADIATION</topic><topic>Optics</topic><topic>OSCILLATIONS</topic><topic>PARTICLE BEAMS</topic><topic>Physics</topic><topic>RADIATIONS</topic><topic>RELATIVISTIC RANGE</topic><topic>SIMULATION</topic><topic>WAVEGUIDES</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kwan, Thomas J. T.</creatorcontrib><creatorcontrib>Theoretical Applications Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>Phys. Fluids; (United States)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kwan, Thomas J. T.</au><aucorp>Theoretical Applications Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>High‐power coherent microwave generation from oscillating virtual cathodes</atitle><jtitle>Phys. Fluids; (United States)</jtitle><date>1984-01</date><risdate>1984</risdate><volume>27</volume><issue>1</issue><spage>228</spage><epage>232</epage><pages>228-232</pages><issn>0031-9171</issn><eissn>2163-4998</eissn><coden>PFLDAS</coden><abstract>The formation of an oscillating virtual cathode by a relativistic electron beam and the subsequent generation of coherent microwaves are investigated. If the electron beam is of high quality, the microwaves excited in a cylindrical waveguide are found to occupy a very narrow band (Δω/ω∼5%) primarily in a single transverse magnetic mode. Furthermore, the efficiency of microwave production is demonstrated in our computer simulations to be as high as 20%. It is also shown quantitatively that the efficiency decreases monotonically as the mean scattering angle of the electron beam increases.</abstract><cop>Woodbury, NY</cop><pub>American Institute of Physics</pub><doi>10.1063/1.864517</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0031-9171 |
| ispartof | Phys. Fluids; (United States), 1984-01, Vol.27 (1), p.228-232 |
| issn | 0031-9171 2163-4998 |
| language | eng |
| recordid | cdi_crossref_primary_10_1063_1_864517 |
| source | Alma/SFX Local Collection |
| subjects | 640440 - Fluid Physics- Electrohydrodynamics 70 PLASMA PHYSICS AND FUSION TECHNOLOGY 700108 - Fusion Energy- Plasma Research- Wave Phenomena BEAMS CATHODES COHERENT RADIATION COMPUTERIZED SIMULATION CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY CONFIGURATION CYLINDRICAL CONFIGURATION Design of specific laser systems ELECTRODES ELECTROMAGNETIC RADIATION ELECTRON BEAMS ENERGY RANGE Exact sciences and technology Fundamental areas of phenomenology (including applications) Laser optical systems: design and operation LEPTON BEAMS MICROWAVE RADIATION Optics OSCILLATIONS PARTICLE BEAMS Physics RADIATIONS RELATIVISTIC RANGE SIMULATION WAVEGUIDES |
| title | High‐power coherent microwave generation from oscillating virtual cathodes |
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