Research/Patents/US 4644548
US 4644548Tier 3 — General Defense

FREE ELCTRON LASER WITH TAPERED AXIAL MAGNETIC FIELD

Assignee

US Government

Filed as: UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE NAVY

Filed

Jan 25, 1984

Granted

Feb 17, 1987

Location

NEW CARROLLTON MD US

Abstract

A free electron laser for emitting coherent radiation. The laser includes a wiggler magnet for producing a spatially periodic magnetic field in a drift region into which relativistic electrons are injected in a predetermined direction. An axial magnet is provided which generates an axial magnetic field parallel to the above predetermined direction. The axial field is tapered in field strength within a uniform wiggler region, wherein the wiggler field is of uniform and constant magnitude, such that the tapered field acts to oppose the change in axial electron velocity resulting from the free electron laser interaction as electrons travel through the drift region. The tapered axial field acts to enhance power output and efficiency.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jul 10, 1984

Rescinded

Oct 11, 1985

Duration

1 year, 3 months

Inventor

  • 1STEVEN H. GOLD

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records