US Patent 7919759 Charged particle beam irradiator and rotary gantry
Patent 7919759 was granted and assigned to National Institute of Radiological Sciences on April, 2011 by the United States Patent and Trademark Office.
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A charged particle beam 2 which enters a final bending electromagnet 7 after traveling through quadrupole electromagnets 4, 5, 6 travels through the final bending electromagnet 7 in an arc shape path by increasing or decreasing a bending magnetic field generated in the final bending electromagnet 7, with a pre-determined period for example and is scanned in an X-direction. The charged particle beam 2 scanned in the X-direction is scanned in a Y-direction while traveling through a Y-direction Wobbler electromagnet 8. Consequently, the charged particle beam 2 is scanned in the X-direction and the Y-direction, and the target 9 is irradiated with the charged particle beam 2 so that a round field is drawn, for example.
US Patent 07919759 Charged particle beam irradiator and rotary gantry US Patent 7919759 Charged particle beam irradiator and rotary gantry
US Patent 07919759 Charged particle beam irradiator and rotary gantry
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