US 10,368,429 B2
Magnetic field regenerator
Kenneth P. Gall, Harvard, MA (US); Gerrit Townsend Zwart, Durham, NH (US); Jan Van der Laan, Littleton, MA (US); and Ken Yoshiki Franzen, Acton, MA (US)
Assigned to Mevion Medical Systems, Inc., Littleton, MA (US)
Filed by Mevion Medical Systems, Inc., Littleton, MA (US)
Filed on Feb. 24, 2017, as Appl. No. 15/441,563.
Application 15/441,563 is a continuation of application No. 14/039,652, filed on Sep. 27, 2013, granted, now 9,622,335.
Claims priority of provisional application 61/707,590, filed on Sep. 28, 2012.
Prior Publication US 2017/0231081 A1, Aug. 10, 2017
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 5/10 (2006.01); H05H 7/02 (2006.01); H05H 7/04 (2006.01); H05H 13/02 (2006.01); H05H 7/10 (2006.01)
CPC H05H 13/02 (2013.01) [A61N 5/1077 (2013.01); H05H 7/02 (2013.01); H05H 7/04 (2013.01); H05H 7/10 (2013.01); A61N 2005/1087 (2013.01); H05H 2007/025 (2013.01); H05H 2007/046 (2013.01)] 33 Claims
OG exemplary drawing
 
1. A particle accelerator comprising:
a voltage source to provide a radio frequency (RF) voltage to a cavity to accelerate particles within the cavity, the cavity having a magnetic field causing the particles to move orbitally within the cavity;
an extraction channel to receive the particles from the cavity and to output the received particles from the cavity; and
a regenerator to provide a magnetic field change within the cavity to thereby change orbits of particles within the cavity so that, eventually, the particles output to the extraction channel, the regenerator comprising an edge comprising a non-orthogonal intersection of two faces;
wherein the magnetic field in a center of the cavity is at least 6 Tesla.