公开(公告)号：US09237640B2

公开(公告)日：2016-01-12

申请号：US14359567

申请日：2012-11-13

Applicant: Ion Beam Applications

Inventor： Michel Abs ,  Jean-Claude Amelia

IPC: H05H13/04 ,  H01J25/62 ,  H05H7/02 ,  H05H13/02

CPC classification number: H05H7/02 ,  H05H13/02 ,  H05H2007/025

Abstract: RF device (1) able to generate an RF acceleration voltage in a synchrocyclotron. The device comprises a resonant cavity (2) formed by a grounded conducting enclosure (5) and enveloping a conducting pillar (3) to a first end of which an accelerating electrode (4) is linked. A rotary variable capacitor (10) is mounted in the conducting enclosure at a second end of the pillar, opposite from the first end, comprising at least one fixed electrode (stator) (11) and a rotor (13) exhibiting a rotation shaft (14) supported and guided in rotation by galvanically isolating bearings (20), said rotor (13) comprising one moveable electrode (12) possibly facing the stator (11). When the shaft (14) rotates, the stator and the moveable electrode together form a variable capacitance whose value varies cyclically with time. The rotor (13) is galvanically isolated from the conducting enclosure (5) and from the pillar (3). The stator (11) is connected to the second end of the pillar (3) or to the conducting enclosure (5). The rotor is respectively coupled capacitively to the conducting enclosure or to the pillar. This makes it possible to dispense with sliding electrical contacts between the rotor and respectively the conducting enclosure or the pillar.

Abstract translation: RF器件（1）能够在同步回旋加速器中产生RF加速电压。 该装置包括由接地的导电外壳（5）形成的谐振腔（2），并将导电柱（3）包围到第一端，加速电极（4）连接在该第一端上。 旋转可变电容器（10）安装在与第一端相对的柱的第二端处的导电外壳中，包括至少一个固定电极（定子）（11）和转子（13），转子（13） 14）通过电隔离轴承（20）旋转地支撑和引导，所述转子（13）包括可能面向定子（11）的一个可移动电极（12）。 当轴（14）旋转时，定子和可动电极一起形成其值随时间周期性变化的可变电容。 转子（13）与导电外壳（5）和支柱（3）电隔离。 定子（11）连接到支柱（3）的第二端或导电外壳（5）。 转子分别电容耦合到导电外壳或支柱。 这使得可以省略在转子与导电外壳或支柱之间的滑动电接触。

公开(公告)号：US09237639B2

公开(公告)日：2016-01-12

申请号：US14125038

申请日：2012-06-21

Applicant: Sang Hun Lee

Inventor： Sang Hun Lee

IPC: H01J27/16 ,  H01J27/18 ,  H05H7/02 ,  H01J37/32 ,  H01P5/12 ,  H05H1/46

CPC classification number: H05H7/02 ,  H01J37/32247 ,  H01P5/12 ,  H05H1/46 ,  H05H2001/4622

Abstract: A microwave resonant cavity is provided. The microwave resonant cavity includes: a sidewall having a generally cylindrical hollow shape; a gas flow tube disposed inside the sidewall and having a longitudinal axis substantially parallel to a longitudinal axis of the sidewall; a plurality of microwave waveguides, each microwave waveguide having a longitudinal axis substantially perpendicular to the longitudinal axis of the sidewall and having a distal end secured to the sidewall and aligned with a corresponding one of a plurality of holes formed on the sidewall; a top plate secured to one end of the sidewall; and a sliding short circuit having: a disk slidably mounted between the sidewall and the gas flow tube; and at least one bar disposed inside the sidewall and arranged parallel to the longitudinal axis of the sidewall.

Abstract translation: 提供微波谐振腔。 微波谐振腔包括：具有大致圆柱形中空形状的侧壁; 设置在所述侧壁内侧并具有基本上平行于所述侧壁的纵向轴线的纵轴的气流管; 多个微波波导，每个微波波导具有基本上垂直于所述侧壁的纵向轴线的纵向轴线，并且具有固定到所述侧壁的远端并与形成在所述侧壁上的多个孔中的对应的一个孔对准; 顶板固定在侧壁的一端; 滑动短路具有：可滑动地安装在侧壁和气体流动管之间的盘; 以及设置在侧壁内并且平行于侧壁的纵向轴线布置的至少一个杆。

公开(公告)号：US09129714B2

公开(公告)日：2015-09-08

申请号：US13248209

申请日：2011-09-29

Applicant: John Noonan ,  Dean Walters ,  Matt Virgo ,  John Lewellen

Inventor： John Noonan ,  Dean Walters ,  Matt Virgo ,  John Lewellen

IPC: G21G1/10 ,  H05H9/00 ,  H05H7/02

CPC classification number: G21G1/10 ,  H05H7/02 ,  H05H9/00

Abstract: A method and isotope linac system are provided for producing radio-isotopes and for recovering isotopes. The isotope linac is an energy recovery linac (ERL) with an electron beam being transmitted through an isotope-producing target. The electron beam energy is recollected and re-injected into an accelerating structure. The ERL provides improved efficiency with reduced power requirements and provides improved thermal management of an isotope target and an electron-to-x-ray converter.

Abstract translation: 提供了一种方法和同位素线性加速器系统，用于产生放射性同位素和回收同位素。 同位素线性加速器是一种能量回收线性加速器（ERL），电子束通过同位素产生靶传输。 电子束能被回收并重新注入加速结构。 ERL通过降低功率需求提高了效率，并提供了同位素靶和电子到X射线转换器的改进的热管理。

公开(公告)号：US20150245463A1

公开(公告)日：2015-08-27

申请号：US14192864

申请日：2014-02-27

Applicant: ETM Electromatic, Inc.

Inventor： William L. NIGHAN, JR. ,  Maarten KORRINGA ,  John Howard ROLIN ,  Devin Kirk HENDERLONG

IPC: H05H9/04 ,  G01V5/00

CPC classification number: H05H7/02 ,  G01V5/0016 ,  H05H9/048 ,  H05H2007/022

Abstract: A linac-based X-ray system for cargo scanning and imaging applications uses linac design, RF power control, beam current control, and beam current pulse duration control to provide stable sequences of interleaved pulses having different energy levels, for example alternating 4 MeV and 6 MeV pulses or other energies where the difference in levels is at least approximately 1 MeV and less than approximately 5 MeV. The pulse repetition rate can be 100-400 pulses per second or more. In an embodiment, a cool down calculation is combined with automatic frequency control to provide stable energy and dose per pulse even upon restarting of pulsing after an “off” period of indeterminate duration.

Abstract translation: 用于货物扫描和成像应用的基于直线加速器的X射线系统使用直线加速器设计，RF功率控制，束电流控制和束电流脉冲持续时间控制，以提供具有不同能级的交替脉冲的稳定序列，例如交替的4MeV和 6 MeV脉冲或其他能量，其中电平差异至少约为1 MeV且小于约5 MeV。 脉冲重复率可以是每秒100-400脉冲或更多。 在一个实施例中，冷却计算与自动频率控制组合，以便即使在不确定持续时间的“关闭”时段之后重新启动脉冲，也能提供每脉冲的稳定的能量和剂量。

公开(公告)号：US20150073199A1

公开(公告)日：2015-03-12

申请号：US14395385

申请日：2012-07-24

Applicant: Hidenobu Takase

Inventor： Hidenobu Takase

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

CPC classification number: H05H7/02 ,  A61N5/1043 ,  A61N5/1048 ,  A61N5/1077 ,  A61N2005/1087 ,  G21K5/04 ,  H05H13/04 ,  H05H2277/11

Abstract: A hard disk drive memory which stores pattern data of a high-frequency to be applied for each combination of energy and intensity of the generated particle beam and a local memory, which reads a plurality of pattern data of a high-frequency for each patient together with a sequential order of changing energy and intensity from the hard disk drive memory and stores data in order to perform a scanning irradiation method in which a layered particle beam irradiation region in a depth direction of an affected part of the patient is formed sequentially by changing energy and intensity of the particle beam sequentially to irradiate an affected part of a patient which is an irradiation subject with the particle beam, and which reads out data faster than the hard disk drive memory are provided.

Abstract translation: 一个硬盘驱动器存储器，其存储要应用于生成的粒子束的能量和强度的每个组合的高频模式数据，以及本地存储器，其将每个患者的高频模式数据一起读取 具有从硬盘驱动器存储器改变能量和强度的顺序，并存储数据，以执行扫描照射方法，其中通过改变患者的患者部分的深度方向上的分层粒子束照射区域 依次提供粒子束的能量和强度，以照射具有粒子束的照射对象的患者的受影响部分，并且读出比硬盘驱动器存储器更快的数据。

公开(公告)号：US20150042244A1

公开(公告)日：2015-02-12

申请号：US14344265

申请日：2012-08-24

Applicant: Michael Back ,  Oliver Heid ,  Michael Kleemann

Inventor： Michael Back ,  Oliver Heid ,  Michael Kleemann

IPC: H03B1/02 ,  H01P7/06 ,  H01P7/10 ,  H05H7/02

CPC classification number: H03B1/02 ,  H01P7/06 ,  H01P7/10 ,  H05H7/02 ,  H05H7/18 ,  H05H2007/025

Abstract: An HF resonator has a cylindrical cavity made of a dielectric material. The cavity includes a first cylindrical portion, a second cylindrical portion, and a dielectric ring that connects the first portion and the second portion. The inner face of the first cylindrical portion has an electrically conductive first inner coating. An inner face of the second cylindrical portion has an electrically conductive second inner coating. An electrically conductive first enclosed coating is arranged between the first cylindrical portion and the dielectric ring. An electrically conductive second enclosed coating is arranged between the second cylindrical portion and the dielectric ring. The first enclosed coating is conductively connected to the first inner coating. The second enclosed coating is conductively connected to the second inner coating. The HF resonator includes a device that is provided for applying a high-frequency electric voltage between the first enclosed coating and the second enclosed coating.

Abstract translation: HF谐振器具有由介电材料制成的圆柱形空腔。 空腔包括连接第一部分和第二部分的第一圆柱形部分，第二圆柱形部分和介电环。 第一圆柱形部分的内表面具有导电的第一内涂层。 第二圆柱形部分的内表面具有导电的第二内涂层。 导电的第一封闭涂层布置在第一圆柱形部分和介电环之间。 导电的第二封闭涂层布置在第二圆柱形部分和介电环之间。 第一封闭涂层与第一内涂层导电连接。 第二封闭涂层与第二内涂层导电连接。 HF谐振器包括设置用于在第一封闭涂层和第二封闭涂层之间施加高频电压的装置。

公开(公告)号：US08952343B2

公开(公告)日：2015-02-10

申请号：US13887071

申请日：2013-05-03

Applicant: Varian Medical Systems Particle Therapy GmbH

Inventor： Thomas Stephani ,  Uwe Behrens ,  Heinrich Roecken ,  Jan Timmer ,  Christian Baumgarten

IPC: A61N5/10 ,  H05H7/02 ,  H01J3/14 ,  H05H13/00 ,  H05H7/12

CPC classification number: H05H7/02 ,  A61N5/10 ,  A61N5/1077 ,  A61N2005/1087 ,  H01J3/14 ,  H05H13/005 ,  H05H2007/122 ,  H05H2277/11

Abstract: Systems and methods are provided to perform efficient, automatic cyclotron initialization, calibration, and beam adjustment. A process is provided that allows the automation of the initialization of a cyclotron after overnight or maintenance imposed shutdown. In one embodiment, five independent cyclotron system states are defined and the transition between one state to another may be automated, e.g., by the control system of the cyclotron. According to these embodiments, it is thereby possible to achieve beam operation after shutdown with minimal manual input. By applying an automatic procedure, all active devices of the cyclotron (e.g., RF system, extraction deflectors, ion source) are respectively ramped to predefined parameters.

Abstract translation: 提供系统和方法来执行有效的自动回旋加速器初始化，校准和光束调整。 提供了一个过程，允许自动化过夜后的回旋加速器的初始化或维护关闭。 在一个实施例中，定义了五个独立的回旋加速器系统状态，并且一个状态与另一个状态之间的转换可以例如由回旋加速器的控制系统自动化。 根据这些实施例，由此可以在最少的手动输入之后实现停机后的光束操作。 通过应用自动程序，回旋加速器的所有有源装置（例如，RF系统，提取偏转器，离子源）分别斜坡到预定参数。

公开(公告)号：US08927946B2

公开(公告)日：2015-01-06

申请号：US13887086

申请日：2013-05-03

Applicant: Varian Medical Systems Particle Therapy GmbH

Inventor： Uwe Behrens ,  Thomas Stephani

IPC: A61N5/10 ,  H01J3/14 ,  G21K5/00 ,  H05H13/00 ,  H05H7/02 ,  H05H7/12

CPC classification number: H05H7/02 ,  A61N5/10 ,  A61N5/1077 ,  A61N2005/1087 ,  H01J3/14 ,  H05H13/005 ,  H05H2007/122 ,  H05H2277/11

Abstract: Systems and methods are provided to perform efficient, automatic adjustment of cyclotron beam currents within a wide range for multiple treatment layers within the same patient and treatment session. In one embodiment, efficient adjustment is achieved by using beam current attenuation by an electrostatic vertical deflector installed in the inner center of the cyclotron. The beam current may, for example, be adjusted by the high voltage applied to the electrostatic vertical deflector. In front of each treatment the attenuation curve of the vertical deflector is recorded. Based on this attenuation curve, the vertical deflector voltage for the needed beam current of each irradiation layer is interpolated. With this procedure the beam current could be automatically adjusted in minimal time over a wide range while maintaining a high level of precision.

Abstract translation: 提供系统和方法以在相同的患者和治疗期间内的多个处理层的宽范围内对回旋加速器束电流进行有效的自动调节。 在一个实施例中，通过使用安装在回旋加速器的内部中心的静电垂直偏转器来使用束流衰减来实现有效的调节。 例如，束电流可以通过施加到静电垂直偏转器的高电压来调节。 在每次处理前，记录垂直偏转器的衰减曲线。 基于该衰减曲线，对每个照射层所需的束电流的垂直偏转器电压进行插值。 通过该程序，可以在很宽的范围内以最小的时间自动调整光束电流，同时保持高精度。

公开(公告)号：US08836250B2

公开(公告)日：2014-09-16

申请号：US13473489

申请日：2012-05-16

Applicant: Stephen Wah-Kwan Cheung ,  Roger Heering Miller ,  Juwen Wang

Inventor： Stephen Wah-Kwan Cheung ,  Roger Heering Miller ,  Juwen Wang

IPC: H05H9/00

CPC classification number: H05H7/02 ,  H05H7/12 ,  H05H9/02 ,  H05H9/048

Abstract: Provided herein are systems and methods for operating a traveling wave linear accelerator to generate stable electron beams at two or more different intensities by varying the number of electrons injected into the accelerator structure during each pulse by varying the electron beam current applied to an electron gun. The electron beams may be used to generate x-rays having selected doses and energies, which may be used for cargo scanning or radiotherapy applications.

Abstract translation: 本文提供的是用于操作行波线性加速器以通过改变施加到电子枪的电子束电流在每个脉冲期间注入到加速器结构中的电子数来以两个或更多个不同强度产生稳定电子束的系统和方法。 电子束可用于产生具有选定剂量和能量的X射线，其可用于货物扫描或放射治疗应用。

公开(公告)号：US08803453B2

公开(公告)日：2014-08-12

申请号：US13134989

申请日：2011-06-22

Applicant: Douglas W. Eaton ,  Gongyin Chen ,  Timothy R. Fox

Inventor： Douglas W. Eaton ,  Gongyin Chen ,  Timothy R. Fox

IPC: H05H7/02

CPC classification number: H05H7/02 ,  H05H2007/022

Abstract: A method for generating stabilized particle acceleration by a radio-frequency (RF) accelerator is described, comprising operating the accelerator in a warm-up mode during a warm-up time period, without injecting charged particles or without accelerating injected charged particles, and operating the accelerator in a beam-on mode during a beam-on time period after the warm-up time period, to accelerate charged particles injected by the charged particle source. Automatic frequency control to match an expected frequency of the accelerator during the beam-on time period, prior to the start of the beam-on time period, for stability, is also described.

Abstract translation: 描述了通过射频（RF）加速器产生稳定的粒子加速度的方法，包括在预热时间段内以预热模式操作加速器，而不注入带电粒子或不加速注入的带电粒子，并且操作 加速器在加热时间段之后的束缚时间段期间处于束缚模式，以加速由带电粒子源注入的带电粒子。 还描述了为了稳定性，在射束接通时间段开始之前的射束接通时间段期间匹配加速器的预期频率的自动频率控制。