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    Sheet beam emittance measurements by slit-pinhole method 

    Cheng, S.; Destler, William (Elsevier, 1996)
    A method for measuring sheet electron beam emittance is developed. The effective emittances are obtained through construction of particle distribution in the transverse dimensions using slit- pinhole parameters. Measurement ...
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    Analysis of the electromagnetic waves in an overmoded finite length slow wave structure 

    Amin, Rahul; Ogura, K.; Kitamura, H.; Minami, K.; Watanabe, T.; Carmel, Y.; Main, W.; Weaver, J.; Destler, William; Granatstein, V. (©1995 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE., 1995-04)
    The electromagnetic fields of the higher order axial resonant modes in a slow wave structure are analyzed and found to have considerably different characteristics from those of the conventional fundamental mode. Here, ...
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    Starting energy and current for a large diameter finite length backward wave oscillator operated at the fundamental mode 

    Minami, K.; Ogura, K.; Aiba, Y.; Amin, M.; Zheng, X.; Watanabe, T.; Carmel, Y.; Destler, William; Granatstein, V. (©1995 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE., 1995-04)
    We study the starting conditions for a large diameter (diameter/wavelength = 4.8) finite length backward wave oscillator designed for 24-GHz operation at the fundamental T M o l mode. This geometry is very promising for ...
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    High power operation of a wiggler-focused sheet beam free electron laser amplifier 

    Cheng, S.; Destler, William (Elsevier, 1995)
    The proof-of-principle millimeter-wave free electron laser amplifier at the University of Maryland has been operated at an input power level of N 1 kW at a frequency of 86 GHz, following successful operation at smaller ...
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    Electromagnetic properties of open and closed overmoded slow-wave resonators for interaction with relativistic electron beams 

    Main, W.; Carmel, Y.; Ogura, K.; Weaver, J.; Nusinovich, G.; Kobayashi, S.; Tate, J.; Rodgers, J.; Bromborsky, A.; Watanabe, S.; Amin, M.; Minami, K.; Destler, William; Granatstein, V. (©1994 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE., 1994-10)
    Specific slow wave structures are needed in order to produce coherent Cherenkov radiation in overmoded relativistic generators. The electromagnetic characteristics of such slow wave, resonant, finite length structures ...
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    The Axially modulated, cusp-injected, large-orbit gyrotron amplifier 

    Lawson, W.; Destler, William (©1994 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE., 1994-10)
    We introduce a novel hybrid microwave amplifier that utilizes the axial bunching mechanism of klystrons in conjunction with the energy extraction mechanism of cyclotron resonance masers. A simple analytic model is used ...
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    Can plasma microwave devices revitalize and broaden the scientific and technological base of microwave sources? 

    Carmel, Y.; Antonsen, T. Jr; Levush, B.; Nusinovich, G.; Destler, William; Granatstein, V. (1994-06)
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    Characterization of electron beams generated in a high-voltage pulse-line-driven pseudospark discharge 

    Ramaswamy, K.; Destler, William; Segalov, Z.; Rodgers, J. (American Institute of Physics, 1994-05-01)
    Emittance and energy measurements have been performed on a high-brightness electron beam (>1010Nm2 rad2 ) with diameter in the range 1-3 mm and energy in the range 150-170 keY. This electron beam is generated by the ...
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    Periodic magnetic focusing of sheet electron beams 

    Booske, J.; Basten, M.; Kumbasar, A.; Antonsen, T.; Bidwell, S.; Carmel, Y.; Destler, William; Granatstein, V.; Radack, D. (American Institute of Physics, 1994-05)
    Sheet electron beams focused by periodically cusped magnetic (PCM ) fields are stable against low-frequency velocity-shear instabilities (such as the diocotron mode). This is in contrast to the more familiar unstable ...
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    Experimental realization of millimeter-wave amplification by a sheet beam free electron laser 

    Zhang, Ze-Xiang; Destler, William; Granatstein, V.; Antonsen, T.; Levush, B.; Rodgers, J.; Cheng, S. (American Institute of Physics, 1994-03-14)
    We report an observation of millimeter-wave (94 GHz) amplification in a sheet beam, short period, planar wiggler: free electron laser amplifier. The observed gain is about 5 dB for a 530 keV, 4 A beam through a 54 cm ...
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    Destler, William (136)
    Granatstein, V. (41)Rodgers, J. (37)Carmel, Y. (29)Levush, B. (20)Segalov, Z. (16)Radack, D. (15)Minami, K. (14)Antonsen, T. Jr (13)Reiser, M. (13)... View MoreSubjectElectron beams (2)Microwaves (2)Acceleration (1)Axial magnetic field (1)Backward wave oscillator (1)Backward wave tubes (1)Backward-wave oscillator (BWO) (1)Deuterium ions (1)Dispersion curve (1)Doppler (1)... View MoreDate Issued2000 - 2009 (10)1990 - 1999 (53)1980 - 1989 (50)1970 - 1979 (22)1969 - 1969 (1)Has File(s)Yes (120)No (16)

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