公开(公告)号：US06809325B2

公开(公告)日：2004-10-26

申请号：US10470464

申请日：2003-11-12

Applicant: Ludwig Dahl ,  Bernhard Schlitt

Inventor： Ludwig Dahl ,  Bernhard Schlitt

IPC: G21G500

CPC classification number: G21K5/04 ,  H05H7/04 ,  H05H7/08 ,  H05H2277/11

Abstract: The present invention relates to an apparatus for generating, extracting and selecting ions used in a heavy ion cancer therapy facility. The apparatus comprises an independent first (ECRIS 1) and an independent second electron cyclotron resonance ion source (ECRIS 2) for generating heavy and light ions, respectively. Further is enclosed downstream of spectrometer magnet (SP1, SP2) for selecting heavy ion species of one isotopic configuration positioned downstream of each ion source (ECRIS 1, ECRIS 2): a magnetic quadrupole triplet (QT1, QT2) positioned downstream of each spectrometer magnet (SP1, SP2); a switching magnet (SM) for switching between high-LET ion species and low-LET ion species of said two independent first and second ion source.

Abstract translation: 本发明涉及用于生成，提取和选择在重离子癌症治疗设备中使用的离子的装置。 该装置包括分别产生重和轻离子的独立的第一（ECRIS 1）和独立的第二电子回旋共振离子源（ECRIS 2）。 另外在光谱仪磁体（SP1，SP2）的下游封闭，用于选择位于每个离子源（ECRIS 1，ECRIS 2）下游的一个同位素构型的重离子种类：位于每个光谱仪磁体下游的磁四极三重态（QT1，QT2） （SP1，SP2）; 用于在所述两个独立的第一和第二离子源的高LET离子种类和低LET离子种类之间切换的切换磁体（SM）。

公开(公告)号：US12101869B2

公开(公告)日：2024-09-24

申请号：US17999995

申请日：2021-01-29

Applicant: National Institutes for Quantum Science and Technology

Inventor： Kota Mizushima ,  Toshiyuki Shirai

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

CPC classification number: H05H7/04 ,  A61N5/1078 ,  H05H7/001 ,  H05H13/04 ,  A61N2005/1087 ,  H05H2007/046 ,  H05H2277/11

Abstract: Disclosed a particle accelerator that accelerates a charged particle beam while circulating the charged particle beam as a circulating beam and outputs some of the circulating beam as an output beam, the particle accelerator including: a first deflection section and a second deflection sections each having a deflection electromagnet; a first straight section, a second straight section, and third straight section each not having the deflection electromagnet; and a control unit, wherein a preceding output deflector of the first straight section deflects some of the circulating beam toward an inner side of a circulating trajectory of the circulating beam to separate the some of the circulating beam as an output beam, wherein a succeeding output deflector of the third straight section deflects the output beam separated from the circulating beam by the preceding output deflector toward an outer side of the circulating trajectory of the circulating beam, and wherein the control unit controls at least the quadrupole electromagnet such that a phase advance of a betatron oscillation of the output beam is 270±45 degrees in a section from the preceding output deflector to the succeeding output deflector.

公开(公告)号：US20240244737A1

公开(公告)日：2024-07-18

申请号：US18288832

申请日：2022-01-25

Applicant: HITACHI, LTD.

Inventor： Chishin HORI ,  Takamichi AOKI ,  Takamitsu HAE

IPC: H05H7/04 ,  H05H7/02 ,  H05H11/00

CPC classification number: H05H7/04 ,  H05H7/02 ,  H05H11/00 ,  H05H2007/025 ,  H05H2007/048 ,  H05H2277/11

Abstract: A dynamic magnetic field feed device feeds a magnetic field at predetermined timing to a predetermined region through which an ion beam having desired energy circulating in an acceleration space passes, and displaces a circular orbit of the ion beam having the desired energy. An extraction channel is arranged on an outer periphery of a magnetic pole. A position O1 where an ion introduction device introduces ions into the acceleration space is a position closer to the extraction channel relative to a center O2 of the magnetic pole. A region to which the dynamic magnetic field feed device feeds a magnetic field is a region closer to an opening of the extraction channel relative to the position O1 where ions are introduced, and the magnetic field to be fed is a magnetic field in a direction where the main magnetic field is strengthened.

公开(公告)号：US20230414970A1

公开(公告)日：2023-12-28

申请号：US18465699

申请日：2023-09-12

Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.

Inventor： Hiroshi TSUTSUI

IPC: A61N5/10 ,  G21K1/093 ,  H05H13/00 ,  H05H7/10 ,  H05H7/04

CPC classification number: A61N5/1081 ,  A61N5/1078 ,  G21K1/093 ,  H05H13/005 ,  H05H7/10 ,  H05H7/04 ,  A61N2005/1087 ,  H05H2007/045 ,  H05H2277/11

Abstract: A particle beam therapy device that irradiates a patient with a cation beam to perform treatment, the device including a passage selection unit that selectively passes through the cation beam among a mixed beam in which the cation beam and other species of a beam having a nuclide different from that of the cation beam are mixed after passing through a deflection magnetic field, after causing the mixed beam to pass through the deflection magnetic field, in a case where the other species of the beam is generated from the cation beam.

公开(公告)号：US20230209696A1

公开(公告)日：2023-06-29

申请号：US17999995

申请日：2021-01-29

Applicant: National Institutes for Quantum Science and Technology

Inventor： Kota Mizushima ,  Toshiyuki Shirai

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

CPC classification number: H05H7/04 ,  A61N5/1078 ,  H05H13/04 ,  H05H7/001 ,  A61N2005/1087 ,  H05H2007/046 ,  H05H2277/11

Abstract: Disclosed a particle accelerator that accelerates a charged particle beam while circulating the charged particle beam as a circulating beam and outputs some of the circulating beam as an output beam, the particle accelerator including: a first deflection section and a second deflection sections each having a deflection electromagnet; a first straight section, a second straight section, and third straight section each not having the deflection electromagnet; and a control unit, wherein a preceding output deflector of the first straight section deflects some of the circulating beam toward an inner side of a circulating trajectory of the circulating beam to separate the some of the circulating beam as an output beam, wherein a succeeding output deflector of the third straight section deflects the output beam separated from the circulating beam by the preceding output deflector toward an outer side of the circulating trajectory of the circulating beam, and wherein the control unit controls at least the quadrupole electromagnet such that a phase advance of a betatron oscillation of the output beam is 270±45 degrees in a section from the preceding output deflector to the succeeding output deflector.

公开(公告)号：US20230180378A1

公开(公告)日：2023-06-08

申请号：US17953369

申请日：2022-09-27

Applicant: Hitachi, Ltd.

Inventor： Futaro EBINA ,  Takuya NOMURA

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

CPC classification number: H05H7/04 ,  H05H7/001 ,  H05H7/10 ,  A61N5/10 ,  A61N2005/1085 ,  H05H2007/008 ,  H05H2007/045 ,  H05H2277/11 ,  H05H13/005

Abstract: There is provided a circular accelerator that accelerates a beam of charged particles circulating in a magnetic field such that a closed orbit for each energy of the beam is eccentric. The circular accelerator includes a beam extraction port for extracting beams of different energies from the closed orbit, a first bending magnet and a second bending magnet that bend the beam extracted from the beam extraction port, and a control unit that controls magnetic field strengths of the first bending magnet and the second bending magnet in accordance with the energy of the extracted beam. When the energy of the extracted beam is a designed maximum energy of the circular accelerator, the control unit excites both the first bending magnet and the second bending magnet to bend the beam.

公开(公告)号：US20180250524A1

公开(公告)日：2018-09-06

申请号：US15970001

申请日：2018-05-03

Applicant: NEUBORON MEDTECH LTD.

Inventor： Yuanhao LIU ,  Weilin CHEN ,  Peiyi LEE

IPC: A61N5/10 ,  G21K1/06 ,  G21K1/12

CPC classification number: A61N5/10 ,  A61N5/1078 ,  A61N2005/109 ,  A61N2005/1094 ,  A61N2005/1095 ,  G21K1/067 ,  G21K1/10 ,  G21K1/12 ,  G21K2201/068 ,  H05H3/06 ,  H05H6/00 ,  H05H2007/125 ,  H05H2277/11

Abstract: In order to improve flux and quality of neutron sources, the disclosure provides a beam shaping assembly for neutron capture therapy includes: a beam inlet; a target, wherein the target has nuclear reaction with an incident proton beam from the beam inlet to produce neutrons; a moderator adjoining to the target, wherein the neutrons are moderated by the moderator to epithermal neutron energies, the moderator includes a main body and a supplement section surrounding the main body, the main body and the supplement section form at least a tapered structure; a reflector surrounding the moderator; a thermal neutron absorber adjoining to the moderator; a radiation shield arranged inside the beam shaping assembly, wherein the radiation shield is used for shielding leaking neutrons and photons so as to reduce dose of the normal tissue not exposed to irradiation; and a beam outlet.

公开(公告)号：US20180192505A1

公开(公告)日：2018-07-05

申请号：US15552581

申请日：2016-04-14

Applicant: SUZHOU LINATECH MEDICAL SCIENCE AND TECHNOLOGY CO., LTD.

Inventor： Jonathan Yi YAO

IPC: H05H5/03 ,  A61N5/10

CPC classification number: H05H5/03 ,  A61N5/00 ,  A61N5/1037 ,  H05H9/044 ,  H05H9/048 ,  H05H2007/002 ,  H05H2277/11

Abstract: The present invention discloses a homologous dual-energy accelerator and a therapy device comprising the homologous accelerator. The homologous dual-energy accelerator comprises an electron emitting device and an accelerating device, wherein the electron emitting device is located at the input end of the accelerating device, and electrons generated by the electron emitting device are emitted from the output end of the accelerating device after being accelerated by the accelerating device; the homologous dual-energy accelerator further comprises at least one separation deflection device which is arranged on the output end side of the accelerating device and used for changing the motion trail of partial electrons among the electrons accelerated by the accelerating device. The homologous dual-energy accelerator has the advantages that the inventor discovers that the speeds and energy of all electrons are not completely same after the electrons are accelerated by the accelerating device; the inventor uses the separation deflection device arranged on the output end side of the accelerating device through the discovery, the motion trail of partial electrons having relatively low energy level among the particles accelerated by the accelerating device is forcibly changed, the electrons having different energy levels in a homologous electron beam are separated, and two energy levels of electron beams are thus obtained, wherein the high-energy electron beam continues an original path and is used for radiotherapy, and the other path of low-energy electron beam is used for tracking lesions and detecting the therapeutic effect.

公开(公告)号：US20170229205A1

公开(公告)日：2017-08-10

申请号：US15265230

申请日：2016-09-14

Applicant: Ion Beam Applications

Inventor： Alexandre DEBATTY ,  Nicolas GÉRARD

IPC: G21K1/04 ,  H01J37/30

CPC classification number: G21K1/04 ,  A61N5/1043 ,  A61N2005/1087 ,  A61N2005/1095 ,  G21K1/00 ,  H01J37/3002 ,  H05H7/001 ,  H05H7/12 ,  H05H2007/004 ,  H05H2007/125 ,  H05H2277/11

Abstract: Embodiments disclose an energy degrader for attenuating the energy of a charged particle beam, comprising a first energy attenuation member presenting a beam entry face having the shape of a part of a first helical surface, a second energy attenuation member presenting a beam exit face having the shape of a part of a second helical surface, the beam exit face being positioned downstream of said beam entry face with respect to the beam direction, and a drive assembly for rotating the first and/or the second energy attenuation members about respectively a first and/or a second rotation axis while crossed by the particle beam. The first and second helical surfaces are continuous surfaces and have the same handedness, to enable a more compact degrader with a smaller moment of inertia.

公开(公告)号：US20170013703A1

公开(公告)日：2017-01-12

申请号：US15115335

申请日：2014-04-04

Applicant: Mitsubishi Electric Corporation

Inventor： Kengo SUGAHARA ,  Shuhei ODAWARA ,  Kazuhiro NISHI

IPC: H05H7/12 ,  H05H7/00 ,  A61N5/10

CPC classification number: H05H7/12 ,  A61N5/1043 ,  A61N5/1071 ,  A61N2005/1087 ,  H05H7/001 ,  H05H7/10 ,  H05H13/04 ,  H05H2007/004 ,  H05H2007/008 ,  H05H2277/11

Abstract: A device controller controls an acceleration-related devices and an extraction-related devices of an accelerator for accelerating and extracting a particle beam, in such a way that the controller checks, at a time point when receiving a master clock pulse, that preparation for operating the acceleration-related devices is completed and then commands the acceleration-related devices to operate in accordance with an operation pattern corresponding to a prescribed energy of the particle beam, and commands the acceleration-related devices to operate in accordance with an extracting operation pattern when an extraction enable signal indicating that the particle beam reaches the prescribed energy is turned ON and an extraction-related device setting-status signal indicating that completion of setting the extraction-related devices for the prescribed energy is ON.

Abstract translation: 设备控制器控制用于加速和提取粒子束的加速器相关设备和加速器的提取相关设备，使得控制器在接收到主时钟脉冲的时间点检查该操作的准备 加速相关装置完成，然后根据与粒子束的规定能量相对应的操作模式命令加速相关装置，并且根据提取操作模式命令加速度相关装置进行操作，当 指示粒子束达到规定能量的提取使能信号被接通，并且指示指定能量的提取相关装置的设定完成为ON的提取相关装置设定状态信号。