US 12,145,005 B2
Particle beam treatment apparatus and accelerator
Nagaaki Kamiguchi, Kanagawa (JP)
Assigned to Sumitomo Heavy Industries, Ltd., Tokyo (JP)
Filed by SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo (JP)
Filed on Mar. 28, 2022, as Appl. No. 17/706,214.
Claims priority of application No. 2021-055419 (JP), filed on Mar. 29, 2021.
Prior Publication US 2022/0305295 A1, Sep. 29, 2022
Int. Cl. A61N 5/10 (2006.01); H05H 7/08 (2006.01)
CPC A61N 5/1065 (2013.01) [A61N 5/1043 (2013.01); A61N 5/1077 (2013.01); H05H 7/08 (2013.01); A61N 2005/1087 (2013.01); H05H 2007/081 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A particle beam treatment apparatus irradiating an irradiation target with a particle beam, the apparatus comprising:
an accelerator that generates the particle beam in an acceleration space; and
an irradiation unit that virtually divides the irradiation target into a plurality of layers and irradiates each layer while performing scanning with the particle beam with a scanning electromagnet,
wherein the accelerator includes a particle generation unit generating particles that are to accelerate in the acceleration space,
the accelerator sets a parameter of the particle generation unit based on at least one of the layers of the irradiation target and adjusts an intensity of the particle beam based on the set parameter, and
the accelerator includes an adjusting unit adjusting the intensity of the particle beam by bending the particle beam with a deflector and scraping a part of the particle beam with a damper in the acceleration space.