Permanent magnet twister

Details Permanent magnet twister Permanent magnet twister

1997-08-25

1999-08-31

Gellner, Michael L.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Electron or ion beam deflecting type

335302, 335306, 372 2, H01F 700

Patent

active

059458992

ABSTRACT:
A permanent magnet rectangular bar shaped to form a helix having a central ore and a longitudinal axis. The magnetic orientation of the helical permanent magnet bar is along the longitudinal axis forming a transverse helical magnetic field. An electron beam or charged particle passing near the longitudinal axis experiences acceleration causing the charged particles to radiate creating a high energy radiation source. In another embodiment, first and second permanent magnet helical bars are intertwined together, forming a cylindrical tube, with each of the intertwined helical bars having a magnetic orientation along the longitudinal axis in opposing directions. In another embodiment of the present invention, an iron ribbon or other high permeability magnetic material is interposed between cut-out portions between first and second intertwined helical permanent magnet bars. This effectively augments the transverse magnetic field. A relatively compact permanent magnetic structure that is relatively simple having a desired transverse helical magnetic field is made possible for such applications as free electron lasers or millimeter/microwave radar devices.

REFERENCES:
patent: 4764743 (1988-08-01), Leupold
patent: 4906877 (1990-03-01), Ciaio
patent: 4994778 (1991-02-01), Leupold
patent: 5099217 (1992-03-01), Leupold

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