Ion beam delivery equipment and ion beam delivery method

Details Ion beam delivery equipment and ion beam delivery method Ion beam delivery equipment and ion beam delivery method

2007-06-06

2009-08-18

Wells, Nikita (Department: 2881)

Radiant energy

Irradiation of objects or material

Ion or electron beam irradiation

C250S492210, C250S505100, C313S363100, C313S359100, C315S503000

Reexamination Certificate

active

07576342

ABSTRACT:
The invention is intended to increase the number of patients treatable using one wheel having a thickness varied in the rotating direction to change energy of an ion beam passing the wheel. Ion beam delivery equipment for irradiating an ion beam to a patient for treatment comprises a beam generator for producing and accelerating the ion beam, an beam delivery nozzle including a range modulation wheel which has a predetermined thickness distribution in the rotating direction and is rotated on a travel passage of the ion beam generated from the beam generator to control a range of the ion beam, and an irradiation controller for controlling the beam producing and accelerating operation of the beam generator in accordance with the phase of rotation of the range modulation wheel.

REFERENCES:
patent: 4794340 (1988-12-01), Ogasawara et al.
patent: 5363008 (1994-11-01), Hiramoto et al.
patent: 7449701 (2008-11-01), Fujimaki et al.
patent: 2007/0158592 (2007-07-01), Hiramoto et al.
“Reviewing of Scientific Instruments”; vol. 64, No. 8, pp. 2074-2084, Aug. 1993.
Kooy, et al., “Monitor Unit Calculations for Range-Modulated Spread-Out Bragg Peak Fields” Phys. Med. Biol. 48 (2003) pp. 2797-2808.

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