公开(公告)号：US20170339778A1

公开(公告)日：2017-11-23

申请号：US15533530

申请日：2014-12-08

申请人： Hitachi, Ltd.

发明人： Takamichi AOKI ,  Fuutarou EBINA ,  Masumi UMEZAWA ,  Shigemitsu HARA ,  Hideaki NISHIUCHI ,  Takayoshi SEKI

IPC分类号： H05H7/04 ,  A61N5/10 ,  H05H13/04 ,  H05H7/10

CPC分类号： H05H7/04 ,  A61N5/10 ,  A61N5/1077 ,  A61N2005/1087 ,  H05H7/10 ,  H05H13/04 ,  H05H13/10 ,  H05H2007/045 ,  H05H2007/048 ,  H05H2277/11

摘要： Ion beams are efficiently extracted with an accelerator that includes a circular vacuum container including a pair of circular return yokes facing each other. Six magnetic poles are radially disposed from the injection electrode at the periphery thereof in the return yoke. Six recessions are disposed alternately with the respective magnetic poles in the circumferential direction of the return yoke. In the vacuum container, a concentric trajectory region, in which multiple beam turning trajectories centered around the injection electrode are present, is formed, and an eccentric trajectory region, in which multiple beam turning trajectories eccentric from the injection electrode are present, is formed around the region. In the eccentric trajectory region, the beam turning trajectories are dense between the injection electrode and the inlet of the beam extraction path. Gaps between the beam turning trajectories are wide in a direction 180° opposite to the inlet of the beam extraction path.

公开(公告)号：US20170318657A1

公开(公告)日：2017-11-02

申请号：US15531806

申请日：2014-12-08

申请人： Hitachi, Ltd.

发明人： Takamichi AOKI ,  Fuutarou EBINA ,  Hideaki NISHIUCHI ,  Shigemitsu HARA ,  Masumi UMEZAWA ,  Takayoshi SEKI

IPC分类号： H05H7/00 ,  H05H7/02 ,  H05H7/04 ,  H05H7/08 ,  H05H13/00 ,  A61N5/10

CPC分类号： H05H7/001 ,  A61N5/10 ,  A61N5/1077 ,  A61N2005/1087 ,  H05H7/02 ,  H05H7/04 ,  H05H7/08 ,  H05H13/005 ,  H05H13/04 ,  H05H2007/002 ,  H05H2007/004 ,  H05H2007/008 ,  H05H2007/025 ,  H05H2007/045 ,  H05H2007/048 ,  H05H2007/082 ,  H05H2007/087

摘要： An accelerator 4 includes a circular vacuum container including circular return yokes 5A, 5B. An injection electrode 18 is disposed closer to an inlet of a beam extraction path 20 in the return yoke 5B than a central axis C of the vacuum container. Magnetic poles 7A to 7F are radially disposed from the injection electrode 18 at the periphery of the injection electrode 18 in the return yoke 5B. Recessions 29A to 29F are disposed alternately with the magnetic poles 7A to 7F in the circumferential direction of the return yoke 5B. In the vacuum container, a concentric trajectory region, in which multiple beam turning trajectories centered around the injection electrode 18 are present, is formed, and an eccentric trajectory region, in which multiple beam turning trajectories eccentric from the injection electrode 18 are present, is formed around the region.

公开(公告)号：US20170303384A1

公开(公告)日：2017-10-19

申请号：US15513584

申请日：2014-12-08

申请人： Hitachi, Ltd.

发明人： Takamichi AOKI ,  Futaro EBINA ,  Hideaki NISHIUCHI ,  Shigemitsu HARA ,  Masumi UMEZAWA ,  Takayoshi SEKI

IPC分类号： H05H13/00 ,  H05H13/04 ,  A61N5/10

CPC分类号： H05H13/005 ,  A61N5/1077 ,  A61N2005/1087 ,  H05H7/08 ,  H05H13/04 ,  H05H2277/11

摘要： The accelerator includes a circular vacuum container which contains a circular return yoke. With respect to the central axis of the vacuum container, an incidence electrode is arranged towards the entrance of a beam emission path inside of the return yoke. Inside of the return yoke, electrodes are arranged radially from the incidence electrode in the periphery of the incidence electrode. Recesses are arranged alternately with the electrodes in the circumferential direction of the return yoke. In the vacuum container, an orbit-concentric region is formed in which multiple beam orbits centered on the incidence electrode are present, and, in the periphery of said region, an orbit-eccentric area is formed in which multiple beam orbits eccentric to the incidence electrode are present. In the orbit-eccentric region, the beam orbits between the incidence electrode and the entrance to the beam emission path are denser.

公开(公告)号：US20150084548A1

公开(公告)日：2015-03-26

申请号：US14457146

申请日：2014-08-12

申请人： HITACHI, LTD.

发明人： Shigemitsu HARA ,  Fumiaki NODA ,  Takamichi AOKI

IPC分类号： H05H7/10 ,  H05H7/04 ,  H05H13/00 ,  H05H7/02

CPC分类号： H05H13/02 ,  H05H13/005 ,  H05H2007/025 ,  H05H2007/122

摘要： A circular accelerator of the present invention includes an electrode that applies a high frequency electric field for accelerating a charged particle beam, an electromagnetic device that bends the charged particle beam, and a direct current (or DC) power supply device that applies a direct current (or DC) electric field to the previous described electrode.

摘要翻译： 本发明的圆形加速器包括施加用于加速带电粒子束的高频电场的电极，使带电粒子束弯曲的电磁装置和施加直流电的直流（或DC）电源装置 （或DC）电场。