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Experimental studies of high-power microwave reflection, transmission, and absorption from a plasma-covered plane conducting boundary
(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 ...
Second generation, high-power, fundamental mode large-orbit gyrotron experiments
(American Institute of Physics, 1991-01-15)
Experimental studies of a large-orbit gyrotron device operating at the fundamental of the
cyclotron frequency have been conducted. Based on results of initial investigations at the
University of Maryland a linear beam ...
Studies of ion acceleration in a one meter laser controlled collective accelerator
(Institute of Electrical and Electronics Engineers, 1991)
The basic concept behind the Laser Controlled Beamfront
Experiment has been described in detail in previous
reports(1,2) In the experiment, control over the propagation
of a virtual cathode at the front of an intense ...
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 ...
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 ...
High power RF amplifiers for accelerator applications: The Large orbit Gyrotron and the high current, space charge enhanced relativistic klystron
(1990-10-23)
Los Alamos is investigating a number of high power
microwave (RPM) sources for their potential to power
advanced accelerators. Included in this investigation are the
large orbit gyrotron amplifier• and oscillator (LOG) ...
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 ...
High-power microwave generation by excitation of a plasma-filled rippled boundary resonator
(©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)
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 ...
Free electron laser pumped by a powerful traveling electromagnetic wave
(©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)
A three-wave free-electron laser (FEL) was operated with
a powerful 8.4-GHz electromagnetic “pump” wave replacing the usual
magnetostatic wiggler. The presence of a uniform axial magnetic field
B,, produced cyclotron-harmonic ...
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 ...