公开(公告)号：US10195465B2

公开(公告)日：2019-02-05

申请号：US15840604

申请日：2017-12-13

Applicant: Pyramid Technical Consultants Inc.

Inventor： John Stuart Gordon ,  Raymond Paul Boisseau

IPC: A61N5/10

Abstract: A control system for fine tuning or spreading a charged particle pencil beam includes a low-inductance, low-power compensation or fine-tuning magnet assembly. The feedback loop that includes the compensation magnet assembly has a faster response rate than the feedback loop that includes the scan nozzle. The compensation or fine-tuning magnet assembly is preferably disposed upstream of the scan nozzle magnet(s) with respect to the beam path to make rapid but minor adjustments to the beam position between iterations of the scan nozzle.

公开(公告)号：US20180111007A1

公开(公告)日：2018-04-26

申请号：US15840604

申请日：2017-12-13

Applicant: Pyramid Technical Consultants Inc.

Inventor： John Stuart Gordon ,  Raymond Paul Boisseau

IPC: A61N5/10

CPC classification number: A61N5/1067 ,  A61N5/1043 ,  A61N5/1045 ,  A61N5/1049 ,  A61N2005/1034 ,  A61N2005/1087

Abstract: A control system for fine tuning or spreading a charged particle pencil beam includes a low-inductance, low-power compensation or fine-tuning magnet assembly. The feedback loop that includes the compensation magnet assembly has a faster response rate than the feedback loop that includes the scan nozzle. The compensation or fine-tuning magnet assembly is preferably disposed upstream of the scan nozzle magnet(s) with respect to the beam path to make rapid but minor adjustments to the beam position between iterations of the scan nozzle.