Browsing William W. Destler (2007 - ) by Title
Now showing items 75-94 of 111
-
Microwave generation in a high voltage triggered pseudospark discharge experiment
(American Institute of Physics, 1998-04-01)A set of five experiments to study the microwave emission accompanying the high voltage pseudospark discharge are reported. The generation of the microwaves in all cases but one is attributed to electron beam-plasma ... -
Microwave radiation from a low-energy rotating electron beam in an azimuthally periodic magnetic wiggler field
(©1987 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., 1987-09)The generation of microwave radiation by the interaction of a low-energy rotating electron beam (25 kV, 0.5 A, 5 ps) with an azimuthally periodic magnetic wiggler field has been studied experimentally. Narrow-band ... -
Millimeter wave emission from a rotating electron ring in a rippled magnetic field
(American Institute of Physics, 1984-02-01)We report measurements of millimeter wave emission from a rotating relativistic electron ring (2 MY, 1 kA) in which electrons move in quasi-circular orbits under the combined action of a uniform axial magnetic field and ... -
Millimeter wave free electron laser amplifiers: Experiments and designs
(1991-08)Free electron laser amplifiers are investigated as sources of high average-power (1 MW) millimeter to submillimeter wave radiation (200-600 GHz) for application to electron cyclotron resonance heating of magnetically ... -
A Novel highly accurate synthetic technique for determination of the dispersive characteristics in periodic slow wave circuits
(IEEE, 1992-11)A novel, highly accurate (0.1-0.5%) synthetic technique for determining the complete dispersive characteristics of electromagnetic modes in a spatially periodic structure is presented. It was successfully applied for ... -
Novel method for determining the elctromagnetic dispersion relation of periodic slow wave structures
(©1990 American Institute of Physics, 1990-09-24)A novel method for calculating the dispersion relation of electromagnetic modes in an arbitrary periodic slow wave structure is reported. In this method it is sufficient to know the frequencies corresponding to three special ... -
Numerical simulation of collective ion acceleration in the laser controlled collective accelerator
(Institute of Electrical and Electronics Engineers, 1989-05) -
Observation of a resonant enhancement of microwave radiation from a gas-filled backward wave oscillator
(American Institute of Physics, 1988-08-15)High-power microwave radiation at 8 GHz from a gas-fined backward wave oscillator driven by an intense relativistic electron beam has been measured. It has been observed that an order of magnitude resonant increase in ... -
Periodic magnetic focusing of sheet electron beams
(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 ... -
Plasma wind tunnel for collisionless shock wave
(1969-11-15) -
Production of positron emitting isotopes using a collective accelerator
(American Institute of Physics, 1983-02)Experimental studies of the production of C^11, N^13, 0^15, and F^18 by collective1y accelerated deuterons impinging on solid targets are presented. -
Progress in high power millimeter-wave FELs with short period wigglers and sheet electron beams
(Institute of Electrical and Electronics Engineers, 1989-05) -
Propagation of wiggler focused relativistic sheet electron beams
(American Institute of Physics, 1988-02-09)A recent design concept for millimeter-wave free-electron lasers [J. Appl, Phys, 60, 521 ( 1986)] would require the stable propagation of a sheet electron beam through a narrow waveguide channel. Experimental results ... -
Radial and axial compression of a hollow electron beam using an asymmetric magnetic cusp
(American Institute of Physics, 1977-09)The injection of hollow. relativistic electron beams through a narrow asymmetric magnetic cusp field has been investigated analytically. Preliminary experimental results are in good agreement with the analytical theory. -
Relativistic backward wave oscillators: Theory and experiment
(IEEE, 1991)Microwave sources based on backward-wave oscillators with relativistic electron beams are capable of producing high power coherent radiation in the cm and mm wavelength regime. Although there have been a number of ... -
Relativistic electron dynamics in a cusped magnetic field
(American Institute of Physics, 1974-08)Single-particle motion of relativistic electrons in a cusped magnetic field has been studied both analytically and experimentally. The Lagrangian formulation is used to solve for the electron trajectories in some simple ... -
Relativistic electron dynamics in a cusped magnetic field with a downstream drift region
(American Institute of Physics, 1975-12)Studies are reported of the motion of relativistic electrons injected first through a narrow magnetic cusp and then into a downstream region in which the particle motion is assumed to be adiabatic. Experiments performed ... -
Relativistic plasma microwave electronics: Studies of high-power plasma-filled backward-wave oscillators
(American Institute of Physics, 1992-07)The area of relativistic plasma microwave electronics has only recently generated renewed interest. New experimental data are presented demonstrating that the presence of a low-density background plasma in a relativistic ...