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公开(公告)号：US10368429B2
公开(公告)日：2019-07-30
申请号：US15441563
申请日：2017-02-24
摘要： 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.
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公开(公告)号：US10258810B2
公开(公告)日：2019-04-16
申请号：US14497754
申请日：2014-09-26
发明人： Gerrit Townsend Zwart , James Cooley , Ken Yoshiki Franzen , Mark R. Jones , Tao Li , Michael Busky
摘要： An example particle therapy system includes: a synchrocyclotron to output a particle beam; a magnet to affect a direction of the particle beam to scan the particle beam across at least part of an irradiation target; scattering material that is configurable to change a spot size of the particle beam, where the scattering material is down-beam of the magnet relative to the synchrocyclotron; and a degrader to change an energy of the beam prior to output of the particle beam to the irradiation target, where the degrader is down-beam of the scattering material relative to the synchrocyclotron.
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公开(公告)号：US09962560B2
公开(公告)日：2018-05-08
申请号：US14137854
申请日：2013-12-20
CPC分类号： A61N5/1043 , A61N5/1042 , A61N5/1045 , A61N5/1048 , A61N5/1077 , A61N5/1081 , A61N5/1083 , A61N2005/1087 , A61N2005/1095 , G21K1/046 , G21K1/10 , H05H13/02 , H05H2007/004 , H05H2007/007 , H05H2007/122
摘要： A particle therapy system includes a particle accelerator to output a particle beam; and a scanning system for the particle accelerator to scan the particle beam across at least part of an irradiation target. The scanning system is configured to scan the particle beam in two dimensions that are at an angle relative to a direction of the particle beam. A structure defines an edge. The structure is controllable to move in the two dimensions relative to the irradiation target such that at least part of the structure is between at least part of the particle beam and the irradiation target. The structure includes a material that inhibits transmission of the particle beam.
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公开(公告)号：US08970137B2
公开(公告)日：2015-03-03
申请号：US14075261
申请日：2013-11-08
CPC分类号： H05H13/02
摘要： A synchrocyclotron includes magnetic structures to provide a magnetic field to a cavity, a particle source to provide a plasma column to the cavity, where the particle source has a housing to hold the plasma column, and where the housing is interrupted at an acceleration region to expose the plasma column, and a voltage source to provide a radio frequency (RF) voltage to the cavity to accelerate particles from the plasma column at the acceleration region.
摘要翻译： 同步回旋加速器包括向空腔提供磁场的磁性结构，为空腔提供等离子体柱的颗粒源，其中颗粒源具有用于保持等离子体柱的壳体，并且其中壳体在加速区域被中断 暴露等离子体柱和电压源以向空腔提供射频（RF）电压以在加速区域加速来自等离子体柱的颗粒。
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公开(公告)号：US08927950B2
公开(公告)日：2015-01-06
申请号：US14039752
申请日：2013-09-27
发明人： Kenneth P. Gall , Gerrit Townsend Zwart , Jan Van der Laan , Charles D. O'Neal, III , Ken Yoshiki Franzen
CPC分类号： H05H13/02 , A61N5/1077 , H05H7/04 , H05H7/10 , H05H2007/043
摘要： 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.
摘要翻译： 示例性粒子加速器包括：谐振腔具有第一形状的背景磁场的谐振腔，其中粒子被加速; 以及用于接收从谐振腔输出的粒子的提取通道。 提取通道包括一系列聚焦区域以聚焦接收的颗粒束。 聚焦区域中的至少一个是被配置为将背景磁场的形状改变为在由于背景磁场的减小导致的磁场梯度的基本上与第一形状相反的第二形状的聚焦元件 谐振腔到提取通道。
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公开(公告)号：US08791656B1
公开(公告)日：2014-07-29
申请号：US13907601
申请日：2013-05-31
IPC分类号： H05H15/00
CPC分类号： H05H13/02 , H05H7/04 , H05H13/005
摘要： An example particle accelerator includes a magnet to generate a magnetic field, where the magnet includes first superconducting coils to pass current in a first direction to thereby generate the first magnetic field, and where the first magnetic field is at least 4 Tesla (T). The example particle accelerator also includes an active return system including second superconducting coils. Each of the second superconducting coils surrounds, and is concentric with, a corresponding first superconducting coil. The second superconducting coils are for passing current in a second direction that is opposite to the first direction to thereby generate a second magnetic field having a magnetic field of at least 2.5 T. The second magnetic field has a polarity that is opposite to a polarity of the first magnetic field.
摘要翻译： 示例性粒子加速器包括用于产生磁场的磁体，其中磁体包括第一超导线圈以在第一方向上传递电流，从而产生第一磁场，并且其中第一磁场为至少4特斯拉（T）。 示例性粒子加速器还包括包括第二超导线圈的主动返回系统。 第二超导线圈中的每一个围绕相应的第一超导线圈并与其同心。 第二超导线圈用于在与第一方向相反的第二方向上通过电流，从而产生具有至少2.5T的磁场的第二磁场。第二磁场的极性与 第一磁场。
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公开(公告)号：US20140094637A1
公开(公告)日：2014-04-03
申请号：US14039084
申请日：2013-09-27
发明人： Gerrit Townsend Zwart , Kenneth P. Gall , Jan Van der Laan , Charles D. O'Neal, III , Ken Yoshiki Franzen
CPC分类号： H05H7/10 , A61N5/1077 , A61N2005/1095 , H05H7/04 , H05H13/005 , H05H13/02 , H05H2007/046
摘要： An example particle accelerator may include the following: a voltage source to sweep a radio frequency (RF) voltage in 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, and where the magnetic field has flux that bows at edges of the cavity; 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 an extraction point, where the regenerator is located at a radius in the cavity relative to the plasma column; and ferromagnetic arrangements located in the cavity proximate to the radius, where each ferromagnetic arrangement provides a magnetic field bump, and where ferromagnetic arrangements adjacent to the regenerator are separated from the regenerator by a space.
摘要翻译： 示例性粒子加速器可以包括以下：用于扫描空腔中的射频（RF）电压以加速来自等离子体柱的粒子的电压源，其中空腔具有导致从等离子体柱加速的粒子在轨道内移动的磁场 空腔，其中磁场具有在空腔边缘处弯曲的通量; 再生器，以在空腔内提供磁场凸块，从而改变从等离子体柱加速的颗粒的连续轨道，使得最终将颗粒输出到提取点，其中再生器相对于腔体位于空腔的半径处 等离子体柱 以及位于靠近半径的空腔中的铁磁装置，其中每个铁磁装置提供磁场凸起，并且其中与再生器相邻的铁磁装置与再生器分离一个空间。
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公开(公告)号：US20140094371A1
公开(公告)日：2014-04-03
申请号：US14039073
申请日：2013-09-27
CPC分类号： H05H7/04 , A61N5/1077 , A61N2005/1087 , A61N2005/1095 , H01F6/06 , H05H13/02
摘要： An example particle accelerator includes a coil to provide a magnetic field to a cavity; a cryostat comprising a chamber for holding the coil, where the coil is arranged in the chamber to define an interior region of the coil and an exterior region of the coil; magnetic structures adjacent to the cryostat, where the magnetic structures have one or more slots at least part-way therethrough; and one or more magnetic shims in one or more corresponding slots. The one or more magnetic shims are movable to adjust a position of the coil by changing a magnetic field produced by the magnetic structures.
摘要翻译： 示例性粒子加速器包括向空腔提供磁场的线圈; 低温恒温器，包括用于保持线圈的腔室，其中线圈布置在腔室中以限定线圈的内部区域和线圈的外部区域; 与低温恒温器相邻的磁性结构，其中磁性结构具有至少一部分穿过其中的一个或多个槽; 以及一个或多个相应的槽中的一个或多个磁性垫片。 一个或多个磁性垫片是可移动的，以通过改变由磁性结构产生的磁场来调节线圈的位置。
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