Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Method and split cavity oscillator/modulator to generate pulsed particle beams and electromagnetic fields

Patent ·
OSTI ID:6291209
A compact device called the split cavity modulator whose self-generated oscillating electromagnetic field converts a steady particle beam into a modulated particle beam. The particle beam experiences both signs of the oscillating electric field during the transit through the split cavity modulator. The modulated particle beam can then be used to generate microwaves at that frequency and through the use of extractors, high efficiency extraction of microwave power is enabled. The modulated beam and the microwave frequency can be varied by the placement of resistive wires at nodes of oscillation within the cavity. The short beam travel length through the cavity permit higher currents because both space charge and pinching limitations are reduced. The need for an applied magnetic field to control the beam has been eliminated.
DOE Contract Number:
AC04-76DP00789
Assignee:
Dept. of Energy, Washington, DC (United States)
Patent Number(s):
US 5235248; A
Application Number:
PPN: US 7-540828
OSTI ID:
6291209
Country of Publication:
United States
Language:
English

Similar Records

Method and split cavity oscillator/modulator to generate pulsed particle beams and electromagnetic fields
Patent · Thu Dec 31 23:00:00 EST 1992 · OSTI ID:868888

The split-cavity oscillator; A high-power E-beam modulator and microwave source
Journal Article · Mon Jun 01 00:00:00 EDT 1992 · IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States) · OSTI ID:6975735

Analysis and experimental results for an extraction cavity for the split-cavity oscillator
Conference · Tue Dec 31 23:00:00 EST 1991 · OSTI ID:7016339