Two-beam particle acceleration method and apparatus

Details Two-beam particle acceleration method and apparatus Two-beam particle acceleration method and apparatus

1994-02-18

1996-01-09

Lee, Benny T.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Combined cathode ray tube and circuit element structure

315 542, 315500, 315505, H05H 706

Patent

active

054831229

ABSTRACT:
Method and apparatus for accelerating charged particles in a compact two-beam accelerator including a high voltage diode which generates an annular intense electron beam and a pencil-shaped secondary beam. The annular beam is modulated and functions as a driver beam for the secondary beam. A focusing magnetic field created by external focusing magnetic field coils adjusts the radius of the annular beam within a plurality of resonant cavity structures of an accelerating portion of the accelerator such that the phase slippage of the secondary beam, with reference to the co-propagated driver beam, is corrected. Correction of the phase slippage results in a secondary beam that is continuously accelerated. The external magnetic field also controls the energy of the secondary beam. Such high energy charged particles are useful in a wide variety of applications, such as medical radiation therapy, sterilization of medical equipment, industrial materials processing, inspection and industrial ion implantation.

REFERENCES:
patent: 3571642 (1971-03-01), Westcott
patent: 3887832 (1975-06-01), Drummond et al.
patent: 4143299 (1979-03-01), Sprangle et al.
patent: 4215291 (1980-07-01), Friedman
patent: 4570103 (1986-02-01), Schoen
patent: 4583025 (1986-04-01), Adler et al.
patent: 4780647 (1988-10-01), Friedman et al.

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