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Projection ablation lithography cathode for high-current, relativistic magnetron

dc.contributor.authorJones, M. C.en_US
dc.contributor.authorNeculaes, V. B.en_US
dc.contributor.authorGilgenbach, Ronald M.en_US
dc.contributor.authorWhite, W. M.en_US
dc.contributor.authorLopez, Mike R.en_US
dc.contributor.authorLau, Y. Y.en_US
dc.contributor.authorSpencer, Thomas A.en_US
dc.contributor.authorPrice, D.en_US
dc.date.accessioned2010-05-06T22:38:45Z
dc.date.available2010-05-06T22:38:45Z
dc.date.issued2004-09en_US
dc.identifier.citationJones, M. C.; Neculaes, V. B.; Gilgenbach, R. M.; White, W. M.; Lopez, M. R.; Lau, Y. Y.; Spencer, T. A.; Price, D. (2004). "Projection ablation lithography cathode for high-current, relativistic magnetron." Review of Scientific Instruments 75(9): 2976-2980. <http://hdl.handle.net/2027.42/70745>en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/70745
dc.description.abstractInitial results are presented of an innovative cathode operating in a relativistic magnetron powered by an accelerator with parameters: −0.3 MV−0.3MV, 1–10 kA1–10kA, and 0.5 μs0.5μs pulse length. This cathode is fabricated by ablating a pattern on the cathode using a KrF laser. This projection ablation lithography (PAL) cathode has demonstrated fast current turn-on and microwave startup times have decreased from an average of 193 to 118 ns193to118ns. The pulselength of 1 GHz1GHz microwave oscillation has increased from a 144 ns144ns average to 217 ns217ns. With these improvements in microwave startup and pulse length, the microwave power has approximately remained the same compared to the previously used cloth cathodes. A new triple-azimuthal emission region is tested as means of prebunching the electrons (“cathode priming”) into the three spokes desired for pi mode operation in a six-cavity magnetron. The Tri-PAL cathode priming results in the fastest startup and highest efficiency of relativistic magnetron microwave generation.en_US
dc.format.extent3102 bytes
dc.format.extent667513 bytes
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dc.publisherThe American Institute of Physicsen_US
dc.rights© The American Institute of Physicsen_US
dc.titleProjection ablation lithography cathode for high-current, relativistic magnetronen_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelPhysicsen_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumNuclear Engineering and Radiological Sciences Department, Intense Energy Beam Interaction Lab, University of Michigan, Ann Arbor, Michigan 48109-2104en_US
dc.contributor.affiliationotherAir Force Research Laboratory, Phillips Research Lab, Kirtland AFB, New Mexicoen_US
dc.contributor.affiliationotherTitan Corporationen_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/70745/2/RSINAK-75-9-2976-1.pdf
dc.identifier.doi10.1063/1.1784561en_US
dc.identifier.sourceReview of Scientific Instrumentsen_US
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dc.owningcollnamePhysics, Department of


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