会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • SOURCE FOR INTRA-PULSE MULTI-ENERGY X-RAY CARGO INSPECTION
    • 脉冲多能量X射线检测的来源
    • WO2015175751A1
    • 2015-11-19
    • PCT/US2015/030716
    • 2015-05-14
    • AMERICAN SCIENCE AND ENGINEERING, INC.
    • SAVERSKIY, Aleksandr
    • G01V5/00G01N23/04G21K5/04
    • H05H7/02G01V5/0041H01J35/00H01J35/14H05G2/00H05H7/08H05H9/04H05H2007/025H05H2007/084
    • Methods for generating a multiple-energy X-ray pulse. A beam of electrons is generated with an electron gun and modulated prior to injection into an accelerating structure to achieve at least a first and specified beam current amplitude over the course of respective beam current temporal profiles. A radio frequency field is applied to the accelerating structure with a specified RF field amplitude and a specified RF temporal profile. The first and second specified beam current amplitudes are injected serially, each after a specified delay, in such a manner as to achieve at least two distinct endpoint energies of electrons accelerated within the accelerating structure during a course of a single RF-pulse. The beam of electrons is accelerated by the radio frequency field within the accelerating structure to produce accelerated electrons which impinge upon a target for generating Bremsstrahlung X-rays.
    • 用于产生多能X射线脉冲的方法。 用电子枪产生电子束并在注入加速结构之前进行调制,以在各个电流时间曲线的过程中达到至少第一和指定的束电流幅度。 将射频场以特定的RF场幅度和指定的RF时间曲线应用于加速结构。 第一和第二规定的光束电流幅度在每个特定的延迟之后被串联地注入,以便在单个RF脉冲的过程中实现加速结构内加速的电子的至少两个不同的端点能量。 电子束由加速结构内的射频场加速,产生撞击在靶上产生Bre致辐射X射线的加速电子。
    • 2. 发明申请
    • X-RAY APPARATUS
    • X-RAY装置
    • WO2009080080A1
    • 2009-07-02
    • PCT/EP2007/011342
    • 2007-12-21
    • ELEKTA AB (PUBL)THE INSTITUTE OF CANCER RESEARCHBROWN, Kevin, JohnTHOMPSON, Maria, GiuliaROBERTS, David, AnthonyEVANS, Philip, MarkHANSEN, Vibeke, Nordmark
    • BROWN, Kevin, JohnTHOMPSON, Maria, GiuliaROBERTS, David, AnthonyEVANS, Philip, MarkHANSEN, Vibeke, Nordmark
    • H05H9/04
    • H05H7/12H01J35/00H01J2235/08H05H6/00H05H9/04
    • X-ray apparatus comprises a linear accelerator adapted to produce a beam of electrons at one of at least two selectable energies and being controlled to change the selected energy on a periodic basis, and a target to which the beam is directed thereby to produce a beam of x-radiation, the target being non- homogenous and being driven to move periodically in synchrony with the change of the selected energy. In this way, the target can move so that a different part is exposed to the electron beam when different pulses arrive. This enables the appropriate target material to be employed depending on the selected energy. The easiest form of periodic movement for the target is likely to be a rotational movement. The target can be immersed in a coolant fluid such as water. The linear accelerator can be of the type disclosed in WO2006/097697A1. The target preferably contains at least one exposed area of tungsten and/or at least one exposed area of carbon. These can be present as inhomogeneities in the material of which the target is composed, such as Carbon inserts in a Tungsten substrate (or vice versa), alternating segments of Carbon and Tungsten, Carbon and Tungsten inserts in a substrate of a third material, or arrangements involving other materials in addition to or instead of Carbon and/or Tungsten. Alternatively, the target can be of a homogenous material but have inhomogeneities in its thickness to cater for the different electron energies. The same concept can be applied to the filter. A detector can be provided, operating in synchrony with the energy variation. Such an x-ray apparatus can form a part of a radiotherapy apparatus, in which case the first selected energy can be a diagnostic energy and a second selected energy a therapeutic energy.
    • X射线装置包括线性加速器,其适于以至少两个可选择的能量之一产生电子束,并被控制以周期性地改变所选择的能量,以及射束被引导从而产生射束 的x辐射,目标是不均匀的并被驱动以与所选择的能量的变化同步地周期性地移动。 以这种方式,当不同的脉冲到达时,目标可以移动,使得不同的部分暴露于电子束。 这使得能够根据所选择的能量使用适当的目标材料。 目标的最简单的周期性运动形式可能是旋转运动。 目标可以浸入冷却液如水中。 线性加速器可以是WO2006 / 097697A1中公开的类型。 目标优选地包含钨的至少一个暴露区域和/或至少一个暴露的碳区域。 这些可以作为靶材组成的材料中的不均匀性,例如在钨基底(或反之亦然)中的碳插入物),碳和钨的交替段,碳和钨插入物在第三材料的衬底中,或 除碳或/或钨之外还有其他材料的安排。 或者,靶可以是均质材料,但是其厚度具有不均匀性以适应不同的电子能量。 相同的概念可以应用于过滤器。 可以提供与能量变化同步操作的检测器。 这种X射线设备可以形成放射治疗设备的一部分,在这种情况下,第一选择的能量可以是诊断能量,而第二选择的能量可以是治疗能量。
    • 4. 发明申请
    • A PHASE SWITCH AND A STANDING WAVE LINEAR ACCELERATOR WITH THE PHASE SWITCH
    • WO2005076674A1
    • 2005-08-18
    • PCT/CN2004/000502
    • 2004-05-18
    • H05H9/04
    • H05H9/04
    • A phase switch (energy switch) comprising a three-cavity system (an end-coupled cavity + a side-passed accelerate cavity + an end-coupled cavity) and a separate single couple cavity is disclosed. The phase shift between the adjacent accelerate cavities is pi when the three-cavities system is disordered (state '0'); and a microwave pass through the three-cavities system to the adjacent accelerate cavities, the phase between the adjacent accelerate cavities is change to 2pi (or 0) when the single couple cavity is disordered (state '1'). When the state 0 changes to state 1, the field phase in the structure behind the system is changed to pi, thereby to switch the phase. In the two states, the entire structure operates in pi/2 mode, that is very stable. That is very important for the medical accelerator. The detaining components have been moved outside the cavity when the single couple cavity or the three-cavity system is in the operate state, without warring about high frequency breakdown. By changing couple between the two end-coupled cavities in the three-cavity system and the adjacent accelerate cavities and between the cavities in the system, the relative field-strength in the acceleration section besides the switching is changed while the phase reverses. It can be used for 6Mev accelerator middle-energy or high-energy accelerator.
    • 5. 发明申请
    • DISPOSITIF HYPERFREQUENCES D'ACCELERATION D'ELECTRONS
    • 用于加速电子的微波器件
    • WO2011020882A1
    • 2011-02-24
    • PCT/EP2010/062110
    • 2010-08-19
    • THALESSIERRA, Serge
    • SIERRA, Serge
    • H05H7/12H05H9/04
    • H05H7/12H05H9/04
    • L'invention concerne un dispositif hyperfréquences d'accélération d'électrons comportant, un canon (50) à électrons fournissant un faisceau d'électrons (54) selon un axe ZZ' dans une structure hyperfréquence (60) d'accélération des électrons du faisceau ayant à une des extrémité (62), du côté du canon à électrons, une entrée (66) du faisceau d'électrons, à l'autre extrémité (64), une sortie (68) d'électrons accélérés, entre les deux extrémités de la structure une suite de n cavités C1, C2,... Ci,... Cx,... Cn couplées selon ledit axe ZZ', de fréquence centrale de résonance fO, une entrée (74) de signal hyperfréquences d'excitation Urf de la structure hyperfréquences par une des cavités Ci de la suite des n cavités, un générateur radiofréquences (76) fournissant le signal hyperfréquences d'excitation Urf à la structure hyperfréquence d'accélération, une unité centrale UC (90) configurée pour commander la variation d'énergie des électrons en sortie de la structure hyperfréquences. Le générateur radiofréquences (76) comporte, une entrée de contrôle (78) de fréquence pour changer la fréquence Fv du signal hyperfréquences d'excitation Urf autour de la fréquence centrale de résonance fO, le changement de la fréquence Fv du signal d'excitation produisant une variation de l'énergie des électrons accélérés du faisceau en sortie de la structure hyperfréquences (60) Application : inspection de conteneurs par irradiation de photons, radiothérapie médicale.
    • 本发明涉及一种用于加速电子的微波器件,它包括一个在微波结构(60)中沿ZZ'轴线提供电子束(54)的电子炮(50),用于加速光束的电子, 在电子枪侧的端部(62)上具有用于电子束的输入(66),在另一端(64)处,用于加速电子的输出(68)在结构的两端之间, 沿着所述轴线ZZ'耦合的一系列n腔C1,C2,... Ci,... Cx,... Cn到中心共振频率f0,用于微波信号的输入(74)用于激励 通过一系列n腔的空腔C1中的一个的微波结构,向微波加速结构提供微波激发信号Urf的射频发生器(76),配置成控制微波激发信号Urf的能量变化的中央处理单元UC(90) 电子离开微波结构。 射频发生器(76)包括频率控制输入(78),用于改变围绕中心谐振频率f0的微波激励信号Urf的频率Fv,激励信号的频率Fv的变化产生能量的变化 离开微波结构(60)的光束的加速电子。 本发明可用于通过照射光子或用于医疗放射治疗来检查容器。
    • 7. 发明申请
    • PARTICLE ACCELERATOR AND METHODS THEREFOR
    • 颗粒加速器及其方法
    • WO2007062195A2
    • 2007-05-31
    • PCT/US2006/045335
    • 2006-11-21
    • HANNA, Samy, M.
    • HANNA, Samy, M.
    • H05H9/00
    • H05H9/04H05H7/18H05H7/22
    • Standing-wave linear accelerators (linac) having a plurality of accelerating cavities and which do not have any auxiliary cavities are provided. Such linacs are useful for industrial applications such as radiography, cargo inspection and food sterilization, and also medical applications such as radiation therapy and imaging. In one embodiment, the linac includes an electron gun for generating an electron beam, and a plurality of accelerating cavities which accelerates the electron beam by applying electromagnetic fields generated by a microwave source. At least two adjacent accelerating cavities of the plurality of accelerating cavities are coupled together by at least one coupling iris. The electromagnetic fields resonate through the plurality of accelerating cavities, and the operating frequency of the electromagnetic fields is selected so that the linear accelerator is operating at a π-mode or a mode close to the π-mode. m another embodiment, the frequency of the electromagnetic fields is selected so that the linear accelerator is operating at a π/2-mode or a mode close to the π/2-mode. This more stable mode of operation is possible because at least two adjacent accelerating cavities of the plurality of accelerating cavities are coupled together by at least one coupling iris which also functions as a resonator for the electromagnetic fields, thereby achieving bi- periodic performance without requiring auxiliary cavities, hi some embodiments, the linear accelerator also includes an x-ray target.
    • 提供了具有多个加速腔并且没有任何辅助腔的驻波直线加速器(直线加速器)。 这种直线加速器对于工业应用如射线照相术,货物检查和食品灭菌以及医疗应用如放射治疗和成像是有用的。 在一个实施例中,直线加速器包括用于产生电子束的电子枪和通过施加由微波源产生的电磁场来加速电子束的多个加速腔。 多个加速腔中的至少两个相邻的加速腔通过至少一个耦合光阑耦合在一起。 电磁场通过多个加速腔共振,并且选择电磁场的工作频率,使得线性加速器以p模式或接近p模式的模式工作。 在另一个实施例中,选择电磁场的频率,使得线性加速器以p / 2模式或接近p / 2模式的模式操作。 这种更稳定的操作模式是可能的,因为多个加速腔中的至少两个相邻的加速腔通过至少一个耦合光圈耦合在一起,该耦合光圈也用作电磁场的谐振器,由此实现双周期性性能而不需要辅助 在一些实施例中,线性加速器还包括x射线靶。
    • 8. 发明申请
    • ION ACCELERATION SYSTEM FOR HADRONTHERAPY
    • 离子加速系统
    • WO2006081847A1
    • 2006-08-10
    • PCT/EP2005/011566
    • 2005-10-28
    • FONDAZIONE PER ADROTERAPIA ONCOLOGICA - TERA
    • AMALDI, UgoCRESCENTI, MassimoZENNARO, Riccardo
    • H05H9/04H05H13/00
    • H05H13/00G21K5/04H05H9/04
    • System for ion acceleration for medical purposes comprising a conventional or superconducting cyclotron, a radiofrequency linear accelerator (Linac), a Medium Energy Beam Transport line (MEBT) connected, at the low energy side, to the exit of the cyclotron, and at the other side, to the entrance of the linear radiofrequency accelerator, as well as a High Energy Beam Transport line (HEBT) connected at high energy side to the radiofrequency linear accelerator exit and at the other end, to a system for the dose distribution to the patient. The high frequency of operation of the Linac allows for a reduced consumption and a remarkable compactness facilitating its installation in hospital structures. The use of a modular LINAC allows varying in active way the energy and the current of the therapeutic beam, having a small emittance and a time structure adapted to the dose distribution based on the technique known as the "spot scanning".
    • 用于医疗用途的用于离子加速的系统包括常规或超导回旋加速器,在低能量侧连接到回旋加速器的出口的射频线性加速器(Linac),中等能量束输送线(MEBT)以及另一个 侧向线性射频加速器的入口以及在高能量侧连接到射频线性加速器出口的另一端的高能束输送线(HEBT)连接到用于剂量分配给患者的系统 。 线性面包线的高频率运行允许减少消耗和显着的紧凑性,便于其在医院结构中的安装。 使用模块化的LINAC允许主动地改变基于被称为“点扫描”的技术的具有适合于剂量分布的小的发射率和时间结构的治疗束的能量和电流。
    • 9. 发明申请
    • STANDING-WAVE ELECTRON LINEAR ACCELERATOR
    • 标准波电子线性加速器
    • WO2004033613A3
    • 2004-07-08
    • PCT/US0332447
    • 2003-10-14
    • SCANTECH HOLDINGS LLCPIROZHENKO VITALY MBOWSER GARY FBELUGIN VLADIMIR MROZANOV NIKOLAY E
    • PIROZHENKO VITALY MBOWSER GARY FBELUGIN VLADIMIR MROZANOV NIKOLAY E
    • C12M20060101H05H9/00H05H9/04
    • H05H9/04
    • A particle accelerator system, including apparatuses and methods, for producing a beam of bunched charged particles at high intensities and with minimal energy dispersion comprises a bunching section having a plurality of bunching cavities, an accelerating section having a plurality of accelerating and coupling cavities, and an electromagnetic drive subsystem having a single radio-frequency (RF) generator coupled to the accelerating section at a single location. The accelerating and bunching sections are directly coupled and share a common wall, which may have a resonant coupling cavity therein, such that charged particles bunch in the bunching section and travel through the common wall into the accelerating section where they are accelerated and exit the particle accelerator system as a beam of bunched charged particles. Preferably, a phase shift of one hundred-eighty degrees (180 DEG ) (or it radians) is created between the electric fields of successive bunching cavities in the bunching section.
    • 用于以高强度和最小能量分散生产聚束带电粒子束的粒子加速器系统包括具有多个聚束腔的聚束部分,具有多个加速和耦合空腔的加速部分,以及 具有在单个位置处耦合到加速部分的单个射频(RF)发生器的电磁驱动子系统。 加速和聚束部分被直接耦合并且共享共同的壁,其可以在其中具有谐振耦合空腔,使得带电粒子束在聚束部分中并且穿过共用壁进入加速部分,在那里它们被加速并离开颗粒 加速器系统作为聚束带电粒子束。 优选地,在聚束部分中连续的聚束空腔的电场之间产生了一百八十度(180度)(或其弧度)的相移。