Title:
Convergence of a particle beam
Document Type and Number:
Japanese Patent JP6121544
Kind Code:
B2
Abstract:
An example particle accelerator includes the following: a resonant cavity in which particles are accelerated, where the resonant cavity has a background magnetic field having a first shape; and an extraction channel for receiving particles output from the resonant cavity. The extraction channel comprises a series of focusing regions to focus a beam of received particles. At least one of the focusing regions is a focusing element configured to alter a shape of the background magnetic field to a second shape that is substantially opposite to the first shape in the presence of a magnetic field gradient resulting from reduction of the background magnetic field from the resonant cavity to the extraction channel.
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Inventors:
Kenneth Pee Gull
Gerrit Townsend Zwald
Jan van der Lahn
Charles Dee O'Neill Third
Ken Yoshiki Franzen
Gerrit Townsend Zwald
Jan van der Lahn
Charles Dee O'Neill Third
Ken Yoshiki Franzen
Application Number:
JP2015534725A
Publication Date:
April 26, 2017
Filing Date:
September 27, 2013
Export Citation:
Assignee:
Mebion Medical Systems Incorporated
International Classes:
H05H13/02; A61N5/10; G21K1/093; G21K5/04; H05H7/10
Domestic Patent References:
| JP6036895A | ||||
| JP2007103107A | ||||
| JP2008053001A |
Foreign References:
| US3883761 | ||||
| WO2010089574A1 | ||||
| US2626351 | ||||
| US4095201 |
Other References:
N. F. Verster,Regenerative Beam Extration from the 150-MeV Synchrocyclotron at the Laboratoire Curie,Proc. of Sector-Focused Cyclotrons,米国,1959年,第224-229頁
Attorney, Agent or Firm:
Yasuhiko Murayama
Shinya Mitsuhiro
Tatsuhiko Abe
Shinya Mitsuhiro
Tatsuhiko Abe
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