US 12,245,355 B2
Gantry for a particle therapy system
Yan Zhang, Hudson, MA (US); Gerrit Townsend Zwart, Durham, NH (US); James Cooley, Boxborough, MA (US); Mark R. Jones, Bolton, MA (US); Honghai Song, Setauket, NY (US); Yan Liu, Kunshan (CN); and Xunjie Yu, Southbridge, MA (US)
Assigned to Mevion Medical Systems, Inc., Littleton, MA (US)
Filed by Mevion Medical Systems, Inc., Littleton, MA (US)
Filed on Feb. 18, 2022, as Appl. No. 17/675,142.
Claims priority of provisional application 63/151,281, filed on Feb. 19, 2021.
Prior Publication US 2022/0272827 A1, Aug. 25, 2022
Int. Cl. H05H 7/04 (2006.01); A61N 5/10 (2006.01); G21K 1/093 (2006.01); H05H 13/02 (2006.01)
CPC H05H 7/04 (2013.01) [A61N 5/1081 (2013.01); G21K 1/093 (2013.01); H05H 13/02 (2013.01); H05H 2277/11 (2013.01)] 32 Claims
OG exemplary drawing
 
1. A particle therapy system comprising:
a gantry comprising a beamline structure configured to direct a particle beam that is monoenergetic from an output of a particle accelerator towards an irradiation target, the beamline structure comprising magnetic bending elements to bend the particle beam along a length of the beamline structure; and
an energy degrader downstream of the beamline structure relative to the particle accelerator, the energy degrader being configured and controllable to change an energy of the particle beam prior to at least part of the particle beam reaching the irradiation target;
wherein the beamline structure has an efficiency of 10% or more; and
wherein the efficiency of 10% or more includes 10% or more of particles output from the particle accelerator being output from the beamline structure.