Rippled beam free electron laser amplifier

Patent · Fri Jan 01 04:00:00 EST 1999

OSTI ID:872658

Carlsten, Bruce E ^[1]

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1. Los Alamos, NM

A free electron laser amplifier provides a scalloping annular electron beam that interacts with the axial electric field of a TM.sub.0n mode. A waveguide defines an axial centerline and, a solenoid arranged about the waveguide produces an axial constant magnetic field within the waveguide. An electron beam source outputs a annular electron beam that interacts with the axial magnetic field to have an equilibrium radius and a ripple radius component having a variable radius with a ripple period along the axial centerline. An rf source outputs an axial electric field that propagates within the waveguide coaxial with the electron beam and has a radial mode that interacts at the electron beam at the equilibrium radius component of the electron beam.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM
• DOE Contract Number: W-7405-ENG-36
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5982787
• OSTI ID: 872658
• Country of Publication: United States
• Language: English

Related Subjects

/372/315/
0n
amplifier
amplifier provides
annular
annular electron
arranged
axial
axial centerline
axial electric
axial magnetic
beam
beam source
centerline
coaxial
component
constant
constant magnetic
defines
electric
electric field
electron
electron beam
electron laser
equilibrium
field
free
free electron
interacts
laser
laser amplifier
magnetic
magnetic field
mode
outputs
period
produces
propagates
provides
radial
radius
rf
rf source
ripple
rippled
scalloping
solenoid
source
source output
source outputs
tm
variable
waveguide