Free-electron laser provided with a device for producing a pulse

Details Free-electron laser provided with a device for producing a pulse Free-electron laser provided with a device for producing a pulse

1979-12-20

1982-08-17

Sikes, William L.

Coherent light generators

Free electron laser

H01S 309

Patent

active

043453295

ABSTRACT:
A magnetic field having an alternate component in a predetermined direction is produced in a zone and electrons are injected into this zone perpendicularly to said direction. To this end a winding is connected to a source for supplying current pulses having a predetermined duration. A split tube is placed coaxially within the winding and has an inner wall which provides periodic or nearly periodic variations. The split tube is formed of material having good electrical conductivity and has a skin thickness which is considerably smaller than the tube thickness at the frequency corresponding to the reciprocal of the time-duration of the current pulses.

REFERENCES:
"Stimulated Emission From Relativistic Electrons Passing Through A Spatially Periodic Transverse Magnetic Field", Phys. Rev. A, Kroll et al., vol. 17, No. 1, Jan. 1978.
"Amplification on a Relativistic Electron Beam in a Spatially Periodic Transverse Magnetic Field", by Bernstein et al., Phys. Rev. A, vol. 20, No. 4, Oct. 1979.

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