Charged-particle beam accelerator, particle beam radiation...

Details Charged-particle beam accelerator, particle beam radiation... Charged-particle beam accelerator, particle beam radiation...

2006-10-17

2006-10-17

Lee, Wilson (Department: 2163)

Electric lamp and discharge devices: systems

High energy particle accelerator tube

C315S504000

Reexamination Certificate

active

07122978

ABSTRACT:
A charged-particle beam accelerator includes an RF-KO unit for increasing the amplitude of betatron oscillation of a charged-particle beam within a stable region of resonance and an extraction quadrupole electromagnet unit for varying the stable region of resonance. The RF-KO unit is operated within a frequency range in which the circulating beam does not go beyond a boundary of the stable region of resonance, and the extraction quadrupole electromagnet unit is operated with appropriate timing as required for beam extraction so that the charged-particle beam is extracted with desired timing.

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T. Furukawa et al., “Fast beam cut-off method in RF-Knockout extraction for spot-scanning”, Nuclear Instruments and Methods in Physics Research A 489, 2002, pp. 59-67, Elsevier Science B.V.
K.Noda et al., “Advanced RF-KO slow-extraction method for the reduction of spill nipple”, Nuclear Instruments and Methods in Physics Research A 492, 2002, pp. 253-263, Elsevier Science B.V.
T. Furukawa et al., “Progress of RF-Knockout Extraction for ION Therapy”, Proceedings of EPAC 2002, Paris, France, pp. 2739-2741.

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