Browsing William W. Destler--E-prints by Author "Destler, William"
Now showing items 21-40 of 111
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Design of a high-efficiency low voltage axially modulated cusp-injected second-harmonic x-band gyrotron amplifier
Lawson, W.; Grigoropoulos, A.; Liu, A.; Saraph, G.; Rodgers, J.; Destler, William (©1996 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., 1996-06)We present the theoretical design of a secondharmonic small-orbit gyrotron amplifier which utilizes the interaction between a 35-kV 4-A beam and a TEoll cavity to produce over 70 kW of amplified power at 9.9 GHz in a ... -
Design of a low-voltage, axially modulated, cusp-injected, third harmonic, x-band gyrotron amplifier experiment
Liu, Arnold; Lawson, Wes; Fernandez, Anna; Rodgers, John; Destler, William (Institute of Electrical and Electronics Engineers, 1997-11)We present the design of a prebunched, third harmonic small-orbit gyrotron experiment that utilizes a 45 kV, 8 A beam to produce over 185 kW of amplified power at 9.9 GHz in a 1.23 kG magnetic field. We detail the design ... -
Design of a short-period-wiggler free electron laser experiment
Booske, J.; Antonsen, T. Jr; Bengston, D.; Bluem, H.; Destler, William; Granatstein, V.; Latham, P.; Mayergoyz, I.; Radack, D.; Rosenbury, T.; Striffler, C. (Institute of Electrical and Electronics Engineers, 1987-06) -
Design of an efficient, low voltage, third harmonic, large-orbit gyrotron amplifier with a vane-resonator output cavity
Lawson, Wes; Destler, William; Fernandez, Anna; Liu, Arnold; Rodgers, J.; Weinstein, Jonathan (©1996 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., 1996-06)We present the design of a 100 kW, J-band, third harmonic large-orbit gyrotron amplifier which utilizes the interaction between a 45 kV, 4 A beam and a vane resonator output cavity operating in the “?r”-mode. An efficiency ... -
Design of high-average-power near-millimeter free electron laser oscillators using short-period wigglers and sheet electron beams
Booske, John; Radack, Daniel; Antonsen, Thomas; Bidwell, Steven; Carmel, Yuval; Destler, William; Freund, Henry; Granatsein, Victor; Latham, Peter; Levush, Baruch; Mayergoyz, Isaak; Serbeto, A. (©1990 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., 1990-06)The design and feasibility of a I-MW continuous wave (CW) free electron laser (FEL) oscillator are reviewed. The proposed configuration will include a short-period (1" - I cm) planar wiggler. a sheet electron beam, a ... -
Effects of drift chamber geometry on the axial and radial confinement of hollow, rotating, relativistic elctron beams of the Maryland ERA
Rhee, M.; Destler, William; Hudgins, D.; Reiser, M. (1976-11) -
Efficiency enhancement by using depressed collector techniques in devices employing gyrating electron beams
Singh, Amarjit; Chojnacki, E.; Destler, William; Goutos, D.; Granatstein, V.; Lawson, W.; Striffler, C. (Institute of Electrical and Electronics Engineers, 1987-06) -
Electromagentic properties of corrugated and smooth waveguides filled with radially inhomogeneous plasma
Shkvarunets, A.; Kobayashi, S.; Weaver, J.; Carmel, Y.; Rodgers, J.; Antonsen, T. Jr; Granatstein, V.; Destler, William (Institute of Electrical and Electronics Engineers, 1996)No abstract found. -
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 ... -
Experiemental study of interaction of microwaves with a nonmagnetized pulsed-plasma column
Signh, A.; Destler, William; Catravas, P.; Rodgers, J. (American Institute of Physics, 1992-09-01)The time evolution of backscattered and sidescattered microwaves from a plane conductor covered by a pulsed-plasma column has been studied; transmitted signals along the axial and transverse directions of the column have ... -
Experimental and numerical studies of sheet electron beam propagation through a planar wiggler magnet
Zhang, Ze-Xiang; Granatstein, Victor; Destler, William; Bidwell, Steven; Rodgers, J.; Cheng, S.; Antonsen, T.; Levush, B.; Radack, D. (IEEE, 1993-12)Detailed experimental studies on sheet relativistic electron beam propagation through a long planar wiggler are reported and compared with numerical simulations. The planar wiggler has 56 periods with a period of 9.6 ... -
Experimental development of a millimeter wave free electron laser
Radack, D.; Bidwell, S.; Antonsen, T. Jr; Carmel, Y.; Destler, William; Granatstein, V.; Latham, P.; Levush, B.; Mayergoyz, I.; Rodgers, J.; Zhang, Z. (SPIE, 1990-12)A 1 MW (cw), millimeter wave FEL (X, « 0.5 mm) is currently under development with an application for heating fusion plasmas. Two salient features of the FEL are the use of a short-period wiggler £w < 10 mm) electromagnet and ... -
Experimental high power plasma-filled backward wave oscillator results
Minami, K.; Lou, W.; Destler, William; Kems, R.; Granatstein, V.; Carmel, Y. (Institute of Electrical and Electronics Engineers, 1988-06) -
Experimental observations on fornation of rotating election beams and effects of gas loading in the Maryland ERA
Destler, William; Hudgins, D.; Linhart, J.; Misra, P.; Reiser, M.; Rhee, M.; Zorn, G. (1973) -
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 ... -
Experimental studies of heavy ion collection acceleration at the University of Maryland
Destler, William; Floyd, L.; Reiser, M. (IEEE, 1979-06)The collective acceleration of ions (H,C,N) from a well-localized ion source immediately downstream of a relativistic electron beam diode is experimentally investigated, The ions are produced either in a wellconfined gas ... -
Experimental studies of high power plasma filled backward wave oscillators
Carmel, Y.; Lou, W.R.; Destler, William; Granatstein, V.L.; Rodgers, J.; Kehs, R.A.; Minami, K. (IEEE, 1990-05-21)Summary form only given, as follows. It has previously been demonstrated that a plasma-loaded backward wave oscillator (BWO) powered by a relativistic electron beam can generate hundreds of megawatts of microwave radiation ... -
Experimental studies of high power plasma filled backward wave oscillators
Carmel, Y.; Lou, W.; Destler, William; Granatstein, V.; Rodgers, J.; Kehs, R.; Minami, K. (1990-05-22) -
Experimental studies of high-power microwave reflection, transmission, and absorption from a plasma-covered plane conducting boundary
Destler, William; DeGrange, J.; Fleischmann, H.; Rodgers, J.; Segalov, Z. (The American Institute of Physics, 1991-05-01)Experimental studies of the reflection, transmission, and absorption of high-power microwave pulses from a plasma-covered plane conducting boundary are presented. Under optimum conditions, backscattered rf power is ... -
Experimental studies of overmoded relativistic backward-wave oscillators
Abe, David; Carmel, Yuval; Miller, Susanne; Bromborsky, Alan; Levush, Baruch; Antonsen, Thomas Jr; Destler, William (Institute of Electrical and Electronics Engineers, 1998-06)Internal field-emission breakdown in the electrodynamic structures of high-power microwave (HPM) devices can seriously limit the device’s output power and pulse duration. Increasing the diameter of the electrodynamic ...