Browsing William W. Destler--E-prints by Title
Now showing items 15-34 of 111
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Collective ion acceleration via laser controlled ionization channel
(Institute of Electrical and Electronics Engineers, 1987)Initial results from a successful laser-controlled collective ion acceleration experiment at the University of Maryland are presented. In the experiment, positive ions are trapped in the potential well at the head of ... -
Controlled collection field propagation for ion acceleration using a slow wave structure
(IEEE, 1977-06)Acceleration of ions by intense relativistic electron beams in a vacuum has been investigated using the injector of the Maryland ERA project. Proton energies above 16 MeV and proton beam currents above 10 kA have been ... -
Demonstration of efficiency enhancement in a high-power backward-wave oscillator by plasma injection
(American Physical Society, 1989-05-15)An experimental demonstration of a strong enhancement of the interaction efficiency in a high-power relativistic backward-wave oscillator when plasma is injected is presented. Controlled plasma injection enhances the ... -
Demonstration of efficiency enhancement on a high-power backward-wave oscillator by plasma injection
(American Physical Society, 1989)An experimental demonstration of a strong enhancement of the interaction efficiency in a high-power relativistic backward-wave oscillator when plasma is injected is presented. Controlled plasma injection enhances the ... -
Depressed collectors for a large orbit gyrotron
(1987-12)An auxiliary magnetic cusp transforms rotational motion in the spent beam of a Large-Orbit Gyrotron into axial motion. Results regarding the interfacing of this cusp with a depressed collector region and the effects ... -
Design of a high-efficiency low voltage axially modulated cusp-injected second-harmonic x-band gyrotron amplifier
(©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
(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
(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
(©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
(©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 ... -
Efficiency enhancement by using depressed collector techniques in devices employing gyrating electron beams
(Institute of Electrical and Electronics Engineers, 1987-06) -
Electromagentic properties of corrugated and smooth waveguides filled with radially inhomogeneous plasma
(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
(©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
(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
(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
(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
(Institute of Electrical and Electronics Engineers, 1988-06)