Particle beam accelerator, and a method of operation

Details Particle beam accelerator, and a method of operation Particle beam accelerator, and a method of operation

1997-09-17

1998-07-21

O'Shea, Sandra L.

Electric lamp and discharge devices: systems

High energy particle accelerator tube

Magnetic field acceleration means

315507, 2504923, 378 65, H05H 1100

Patent

active

057839140

ABSTRACT:
The present invention provides apparatus for acceleration of a charged particle beam which includes energy means for altering the energy of a circulating beam circulating in the apparatus and means for extracting output beams from the apparatus. Control means are arranged to be operable to alter the energy of the circulating beam using the energy means so as to be able to extract output beams of at least two energies from the apparatus using the means for extracting. Thus there is provided an accelerator, and an extraction method therefor, which is capable of extracting a small diameter beam having a varying energy level. This facilitates improved medical irradiation treatment using the beam.

REFERENCES:
patent: 4870287 (1989-09-01), Cole et al.
patent: 5285166 (1994-02-01), Hiramoto et al.
patent: 5363008 (1994-11-01), Hiramoto et al.
Proceedings of the 7th Symposium on Accelerator Science and Technology, Dec. 12-14, 1989, pp. 48-50.
A.M. Koehler et al, "Range Modulators for Protons and Heavy Ions", Nuclear Instruments and Methods 131, 1975, pp. 437-440.

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