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

Patent ·
OSTI ID:868888
 [1];  [1];  [1]
  1. Albuquerque, NM
+ Show Author Affiliations
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.
Research Organization:
AT & T CORP
DOE Contract Number:
AC04-76DP00789
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 5235248
OSTI ID:
868888
Country of Publication:
United States
Language:
English

References (1)

Modulation of an intense beam by an external microwave source: Theory and simulation journal February 1988

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Related Subjects

/315/327/331/
applied
applied magnetic
beam
beams
called
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converts
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electric
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electromagnetic
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magnetic
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microwave
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oscillating
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rate pulse
reduced
resistive
self-generated
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wires