公开(公告)号：US20230262869A1

公开(公告)日：2023-08-17

申请号：US18297861

申请日：2023-04-10

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION

Inventor： Shigeki TAKAYAMA ,  Shinya MATSUDA ,  Takayuki SAKO ,  Tomofumi ORIKASA

IPC: H05H7/04 ,  H05H13/04 ,  H05H7/08 ,  H05H7/10 ,  A61N5/10

CPC classification number: H05H7/04 ,  H05H13/04 ,  H05H7/08 ,  H05H7/10 ,  A61N5/1078 ,  H05H2277/11 ,  H05H2007/043 ,  H05H2007/046 ,  A61N2005/1087

Abstract: According to one embodiment, a particle beam accelerator comprising: an injection unit configured to inject a particle beam; a guiding unit configured to guide the particle beam to a trajectory; an acceleration unit configured to accelerate the particle beam circulating on the trajectory; an emission unit configured to output the particle beam; a particle beam blocking unit configured to block the particle beam on the trajectory; a control unit configured to control the injection unit, the guiding unit, the acceleration unit, the emission unit, and the particle beam blocking unit, wherein: the guiding unit includes a superconducting electromagnet and a superconducting electromagnet interrupter configured to interrupt the superconducting electromagnet, the control unit is configured to change a starting sequence of the particle beam blocking unit and the superconducting electromagnet interrupter depending on at least an operating state of the emission unit, when an abnormality occurs in the superconducting electromagnet.

公开(公告)号：US20180343734A1

公开(公告)日：2018-11-29

申请号：US15865056

申请日：2018-01-08

Applicant: Cornell University

Inventor： Amit Lal ,  Yue Shi ,  Serhan Ardanuc ,  June-Ho Hwang ,  Farhan Rana

IPC: H05H9/04 ,  H05H7/04 ,  H01J37/147 ,  H01J37/06

CPC classification number: H05H9/045 ,  H01J37/06 ,  H01J37/1472 ,  H01J2237/063 ,  H01J2237/15 ,  H05H7/04 ,  H05H9/042 ,  H05H2007/043 ,  H05H2007/046

Abstract: A system that generates short charged particle packets or pulses (e.g., electron packets) without requiring a fast-switching-laser source is described. This system may include a charged particle source that produces a stream of continuous charged particles to propagate along a charged particle path. The system also includes a charged particle deflector positioned in the charged particle path to deflect the stream of continuous charged particles to a set of directions different from the charged particle path. The system additionally includes a series of beam blockers located downstream from the charged particle deflector and spaced from one another in a linear configuration as a beam-blocker grating. This beam-blocker grating can interact with the deflected stream of charged particles and divide the stream of the charged particles into a set of short particle packets. In one embodiment, the charged particles are electrons. The beam blockers can be conductors.

公开(公告)号：US09775228B2

公开(公告)日：2017-09-26

申请号：US14891300

申请日：2014-05-15

Applicant: ION BEAM APPLICATIONS

Inventor： Michel Abs

IPC: H05H13/10 ,  H05H7/02 ,  H05H7/06 ,  H05H7/18 ,  H05H7/04

CPC classification number: H05H13/10 ,  H05H7/02 ,  H05H7/04 ,  H05H7/06 ,  H05H7/18 ,  H05H2007/022 ,  H05H2007/025 ,  H05H2007/046

Abstract: Disclosed embodiments include an electron accelerator, having a resonant cavity having an outer conductor and an inner conductor; an electron source configured to generate and to inject a beam of electrons transversally into the resonant cavity; a radio frequency (RF) source coupled to the resonant cavity and configured to: energize the resonant cavity with an RF power at a nominal RF frequency, and generate an electric field into said resonant cavity that accelerates the electrons of the electron beam a plurality of times into the cavity and according to successive and different transversal trajectories; and at least one deflecting magnet configured to bend back the electron beam that emerges out of the cavity and to redirect the electron beam towards the cavity.

公开(公告)号：US20140232497A1

公开(公告)日：2014-08-21

申请号：US14342820

申请日：2012-08-30

Applicant: Kei Sugita

Inventor： Kei Sugita

IPC: H01F7/20

CPC classification number: H01F7/202 ,  H05H7/04 ,  H05H7/08 ,  H05H7/10 ,  H05H2007/046

Abstract: A device for generating a magnetic field includes at least one electric coil having electric conductors that are arranged along a circular arc within a first angular range and that deviate from the circular arc within a second angular range. At least one magnetic yoke is arranged along a part of the first angular range.

Abstract translation: 用于产生磁场的装置包括至少一个电线圈，该电线圈具有沿第一角度范围内的圆弧排列并且在第二角度范围内偏离圆弧的电导体。 沿着第一角度范围的一部分布置至少一个磁轭。

公开(公告)号：US08378312B1

公开(公告)日：2013-02-19

申请号：US13214118

申请日：2011-08-19

Applicant: John Gordon ,  Raymond Paul Boisseau ,  Andrew Dart

Inventor： John Gordon ,  Raymond Paul Boisseau ,  Andrew Dart

IPC: H01J29/70 ,  H01J29/51 ,  H01F7/18

CPC classification number: G21K1/093 ,  A61N5/1043 ,  A61N2005/1087 ,  H05H2007/046

Abstract: A variety of systems, apparatus and methods for deflecting a particle beam are described. An apparatus comprises at least six electromagnetic portions disposed on a plane. Each of the at least six electromagnetic portions is aligned with a radius emanating from an axis normal to the plane and is distanced from the axis to form a volume about the axis. At least six coils are configured for affecting a dipole magnetic field in the volume in response to electrical currents applied to physically opposing coils where a particle beam entering the volume is deflected. Each of the at least six coils is disposed about a one of the at least six electromagnetic portions. A yoke structure is configured for returning a generated magnetic flux.

Abstract translation: 描述了用于偏转粒子束的各种系统，装置和方法。 一种设备包括设置在平面上的至少六个电磁部分。 所述至少六个电磁部分中的每一个与从所述平面垂直的轴线发出的半径对齐，并且与所述轴线分开以形成围绕所述轴线的体积。 至少六个线圈被配置为响应于施加到物理相对的线圈的电流而影响体积中的偶极磁场，其中进入体积的粒子束被偏转。 所述至少六个线圈中的每一个围绕所述至少六个电磁部分中的一个设置。 轭结构被配置为返回产生的磁通量。

公开(公告)号：US20180132342A1

公开(公告)日：2018-05-10

申请号：US15805509

申请日：2017-11-07

Applicant: Ion Beam Applications S.A.

Inventor： Michel ABS ,  Willem KLEEVEN ,  Jarno VAN DE WALLE ,  Jérémy BRISON ,  Denis DESCHODT

IPC: H05H7/04 ,  H05H7/02 ,  H05H7/08 ,  H05H13/00

CPC classification number: H05H7/04 ,  H05H7/02 ,  H05H7/08 ,  H05H7/18 ,  H05H13/00 ,  H05H13/10 ,  H05H2007/046 ,  H05H2007/084 ,  H05H2245/1225 ,  H05H2277/14

Abstract: An electron accelerator is provided. The electron accelerator comprises a resonant cavity comprising a hollow closed conductor, an electron source configured to inject a beam of electrons, and an RF system. The electron accelerator further comprises a magnet unit, comprising a deflecting magnet. The deflecting magnet is configured to generate a magnetic field in a deflecting chamber in fluid communication with the resonant cavity by a deflecting window. The magnetic field is configured to deflect an electron beam emerging out of the resonant cavity through the deflecting window along a first radial trajectory in the mid-plane (Pm) and to redirect the electron beam into the resonant cavity through the deflecting window towards the central axis along a second radial trajectory. The deflecting magnet is composed of first and second permanent magnets positioned on either side of the mid-plane (Pm).

公开(公告)号：US20180104510A1

公开(公告)日：2018-04-19

申请号：US15847497

申请日：2017-12-19

Applicant: Faye Hendley Elgart ,  Nick Ruebel ,  Mark R. Amato ,  Nandish Desai ,  W. Davis Lee

Inventor： Faye Hendley Elgart ,  Nick Ruebel ,  Mark R. Amato ,  Nandish Desai ,  W. Davis Lee

IPC: A61N5/10 ,  H01J37/08

CPC classification number: A61N5/10 ,  A61N5/1043 ,  A61N5/1081 ,  A61N2005/1087 ,  H01J37/08 ,  H05H13/005 ,  H05H13/04 ,  H05H2007/046 ,  H05H2277/11

Abstract: The invention comprises a method and apparatus for scanning charged particles in a cancer therapy system, comprising the steps of: (1) providing a first and second dipole magnet system and a gap, the gap comprising a common gap length, along a path of the charged particles, within both the first and second dipole magnet systems, the gap comprising a progressively increasing x/y-plane cross-section area from an entrance area of the charged particles into the double dipole magnet system to an exit area of the double dipole magnet system, the x/y-plane perpendicular to a z-axis from a center of the entrance area to a center of the exit area; (2) scanning the positively charged particles along a first axis of the x/y-plane using the first dipole magnet system; and (3) scanning the positively charged particles along a second axis of the x/y-plane using the second dipole magnet system.

公开(公告)号：US20180098413A1

公开(公告)日：2018-04-05

申请号：US15725350

申请日：2017-10-05

Applicant: Ion Beam Applications S.A.

Inventor： Gabriel KRIER ,  Sébastien HENROTIN ,  Yves CLAEREBOUDT

IPC: H05H13/02 ,  H05H7/02 ,  H05H7/04 ,  H05H7/00 ,  A61N5/10

CPC classification number: H05H13/02 ,  A61N5/1043 ,  A61N2005/1087 ,  H05H7/001 ,  H05H7/02 ,  H05H7/04 ,  H05H2007/008 ,  H05H2007/022 ,  H05H2007/025 ,  H05H2007/046 ,  H05H2277/10

Abstract: The embodiments of the present disclosure relate to a method and system for controlling the extraction of ion beam pulses produced by a synchrocyclotron. The synchrocyclotron comprises electrodes configured to be placed in a magnetic field. An alternating voltage is applied between the electrodes, and the frequency of the alternating voltage is modulated in a cyclic manner. In other embodiments, the method further comprises the steps of starting an acceleration cycle of the synchrocyclotron, generating a reference signal when the modulated frequency reaches a predefined value, communicating the time, at which the reference signal is generated, to the beam control elements, assessing one or more status parameters of the one or more beam control elements, and cancelling or proceeding with the extraction of the beam pulse depending on the results of the assessment.

公开(公告)号：US20170194072A1

公开(公告)日：2017-07-06

申请号：US15324494

申请日：2014-09-22

Applicant: Mitsubishi Electric Corporation

Inventor： Ryusuke AOKI ,  Jun OBATA

IPC: H01B5/02 ,  A61N5/10 ,  H05H13/04 ,  H01F7/20 ,  H05H7/04

CPC classification number: H01B5/02 ,  A61N5/1042 ,  A61N2005/1087 ,  H01F5/04 ,  H01F7/20 ,  H01F2007/062 ,  H05H7/02 ,  H05H7/04 ,  H05H13/04 ,  H05H2007/046

Abstract: Plural pairs of connection plates are placed circumferentially around a plurality of circularly-arranged electromagnets, in which the plural pairs are each a pair of two connection plates placed with a gap in a radial direction and are arranged in a longitudinal direction of the connection plates. At a portion where one of the two connection plates forming a pair and one of the adjacent two connection plates forming another pair are connected, an end portion of the one of the two connection plates forming the pair and an end portion of the one of the two connection plates forming the another pair, are configured to be bent in the radial direction so that these end portions are apart from the other one of the two connection plates forming the pair, whereby the connection plates in the pair and the connection plates in the another pair are serially connected.

公开(公告)号：US09622335B2

公开(公告)日：2017-04-11

申请号：US14039652

申请日：2013-09-27

Applicant: Mevion Medical Systems, Inc.

Inventor： Kenneth P. Gall ,  Gerrit Townsend Zwart ,  Jan Van Der Laan ,  Ken Yoshiki Franzen

IPC: H05H7/10 ,  H05H13/02 ,  A61N5/10 ,  H05H7/04

CPC classification number: H05H13/02 ,  A61N5/1077 ,  H05H7/04 ,  H05H7/10 ,  H05H2007/046

Abstract: An example particle accelerator includes the following: a voltage source to provide a radio frequency (RF) voltage to a cavity to accelerate particles from a plasma column, where the cavity has a magnetic field causing particles accelerated from the plasma column to move orbitally within the cavity; an extraction channel to receive the particles accelerated from the plasma column and to output the received particles from the cavity; and a regenerator to provide a magnetic field bump within the cavity to thereby change successive orbits of the particles accelerated from the plasma column so that, eventually, particles output to the extraction channel. The magnetic field is at least 6 Tesla and the magnetic field bump is at most 2 Tesla.