US 12,121,754 B2
Particle beam irradiation system and particle beam irradiation facility
Kenichi Takizawa, Tokyo (JP); Hideaki Nishiuchi, Tokyo (JP); and Tadashi Katayose, Tokyo (JP)
Assigned to HITACHI HIGH-TECH CORPORATION, Tokyo (JP)
Appl. No. 17/638,950
Filed by Hitachi High-Tech Corporation, Tokyo (JP)
PCT Filed Jun. 25, 2020, PCT No. PCT/JP2020/025029
§ 371(c)(1), (2) Date Feb. 28, 2022,
PCT Pub. No. WO2021/049131, PCT Pub. Date Mar. 18, 2021.
Claims priority of application No. 2019-166000 (JP), filed on Sep. 12, 2019.
Prior Publication US 2022/0288421 A1, Sep. 15, 2022
Int. Cl. A61N 5/10 (2006.01)
CPC A61N 5/1077 (2013.01) [A61N 5/1049 (2013.01); A61N 2005/1085 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A particle beam irradiation system, comprising:
an accelerator which is installed on a floor surface and accelerates a charged particle beam;
a transport device which transports the charged particle beam emitted from the accelerator;
an irradiation device which irradiates an irradiation target with the charged particle beam transported by the transport device; and
a gantry which is installed on the floor surface, separately from the accelerator, and to which the irradiation device is attached,
wherein the gantry includes:
a rotating body which rotates the irradiation device about the irradiation target, and
a support device which supports the rotating body from the floor surface at a position where a projection plane of the rotating body on the floor surface and a projection plane of the accelerator or the transport device on the floor surface at least partially overlap with each other,
wherein the transport device includes a first beam transport unit which transports the charged particle beam accelerated by the accelerator along the floor surface and a second beam transport unit which transports the charged particle beam upward on a downstream side of the first beam transport unit, and
wherein the support device has the second beam transport unit behind and is grounded on the floor surface across the first beam transport unit by two legs.