US 11,918,830 B2
Proton therapy tuning apparatus and method of use thereof
Susan L. Michaud, Brewster, MA (US); Daniel J. Raymond, Windham, NH (US); Artur Teymurazyan, Shrewsbury, MA (US); and Ran Tu, Malden, MA (US)
Filed by Susan L. Michaud, Brewster, MA (US); Daniel J. Raymond, Windham, NH (US); Artur Teymurazyan, Shrewsbury, MA (US); and Ran Tu, Malden, MA (US)
Filed on Jul. 21, 2021, as Appl. No. 17/382,044.
Application 17/382,044 is a continuation in part of application No. 16/903,736, filed on Jun. 17, 2020, granted, now 11,135,451.
Application 16/903,736 is a continuation in part of application No. 16/533,761, filed on Aug. 6, 2019, granted, now 10,751,555.
Application 16/533,761 is a continuation in part of application No. 15/901,788, filed on Feb. 21, 2018, granted, now 10,751,554.
Application 15/901,788 is a continuation in part of application No. 15/892,240, filed on Feb. 8, 2018, abandoned.
Application 15/892,240 is a continuation in part of application No. 15/868,897, filed on Jan. 11, 2018, abandoned.
Application 15/868,897 is a continuation in part of application No. 15/838,072, filed on Dec. 11, 2017, abandoned.
Application 15/838,072 is a continuation in part of application No. 15/823,148, filed on Nov. 27, 2017, granted, now 10,792,517.
Application 15/823,148 is a continuation in part of application No. 15/467,840, filed on Mar. 23, 2017.
Application 15/467,840 is a continuation in part of application No. 15/402,739, filed on Jan. 10, 2017, granted, now 10,188,877.
Application 15/402,739 is a continuation in part of application No. 15/348,625, filed on Nov. 10, 2016, granted, now 9,855,444.
Application 15/348,625 is a continuation in part of application No. 15/167,617, filed on May 27, 2016, granted, now 9,737,733.
Application 15/868,897 is a continuation of application No. 15/152,479, filed on May 11, 2016, granted, now 10,213,626.
Application 15/152,479 is a continuation in part of application No. 14/216,788, filed on Mar. 17, 2014, granted, now 9,682,254.
Application 14/216,788 is a continuation in part of application No. 13/087,096, filed on Apr. 14, 2011, granted, now 9,044,600.
Claims priority of provisional application 61/324,776, filed on Apr. 16, 2010.
Prior Publication US 2021/0353966 A1, Nov. 18, 2021
Int. Cl. A61N 5/10 (2006.01); A61B 6/03 (2006.01); G21K 1/087 (2006.01); G21K 1/093 (2006.01); G21K 5/04 (2006.01); H01J 35/14 (2006.01)
CPC A61N 5/1077 (2013.01) [A61B 6/03 (2013.01); A61N 5/1044 (2013.01); A61N 5/1067 (2013.01); A61N 5/1082 (2013.01); G21K 1/087 (2013.01); G21K 1/093 (2013.01); G21K 5/04 (2013.01); A61N 5/107 (2013.01); A61N 2005/1074 (2013.01); A61N 2005/1087 (2013.01); A61N 2005/1097 (2013.01); H01J 35/147 (2019.05)] 9 Claims
OG exemplary drawing
 
1. A method for tuning a positively charged particle beam path in a gap of a charged particle beam system used to treat a tumor of a patient with positively charged particles, comprising the steps of:
positioning a first two-dimensional charged particle detector in a beam line downstream from a first upstream magnet pair of a cancer therapy system, said beam line running at least from an injector, through a synchrotron, and along a beam transport line to a patient position;
operating windings of said first upstream magnet pair at a first power level to generate a first magnetic field across the gap;
measuring a beam position with said first two-dimensional charged particle detector;
adjusting a correction magnetic field by driving voltage of a correction coil at a second power level, said second power level less than five percent of said first power level, wherein the first magnetic field and the correction magnetic field combine to yield an operational magnetic field during use; and
said steps of measuring and adjusting the correction magnetic field changing the operational magnetic field to adjust a measured beam position toward a target beam position.