A system for delivery of proton therapy
    21.
    发明公开
    A system for delivery of proton therapy 审中-公开
    系统zur Protonentherapie

    公开(公告)号:EP1584353A1

    公开(公告)日:2005-10-12

    申请号:EP04017266.0

    申请日:2004-07-22

    IPC分类号: A61N5/10 G21K5/04 G21K1/093

    摘要: A system for an intensity-modulated proton therapy of a predetermined volume (T) within an object (M) is disclosed, comprising:

    a) a proton source in order to generate a proton beam (B) being adjustable with respect to the beam intensity;
    b) a degrader being optionally disposable in the proton beam (B) in order to attenuate the energy of the protons in the proton beam (B) to a desired proton energy in the proton beam (B);
    c) a number of proton beam bending and/or focusing units;
    d) a beam nozzle (N) having an outlet for the proton beam (B) to penetrate the predetermined volume (T) of the object (M);
    e) a beam bending magnet (A3) being disposed upstream of the nozzle (N); and
    f) a couple of sweeper magnets (WT, WU) being disposed upstream of said beam bending magnet (A3) in order to sweep the proton beam (B) in both lateral directions (T, U) before the proton beam (B) enters into the beam bending magnet (A3),
    g) said beam nozzle (N) is defining a cross-sectional scanning area (SF) substantially perpendicular to the proton beam (B) in the range of 10 to 30 cm 2 , and
    h) said sweeper magnets (WT, WU) and said beam bending magnet (A3) are controlled in order to guarantee a parallel beam orientation over the complete cross-sectional scanning area (SF).

    摘要翻译: 公开了一种用于对象(M)内的预定体积(T)的强度调制质子治疗的系统,包括:a)质子源,以产生相对于束强度可调节的质子束(B) ; b)降解器可选地在质子束(B)中一次性,以便将质子束(B)中的质子的能量衰减到质子束(B)中期望的质子能量; c)许多质子束弯曲和/或聚焦单元; d)具有用于质子束(B)的出口穿过物体(M)的预定体积(T)的射束喷嘴(N); e)设置在喷嘴(N)上游的梁弯曲磁体(A3); 以及f)在所述光束弯曲磁体(A3)的上游设置一对清扫器磁体(WT,WU),以便在质子束(B)之前沿两个横向(T,U)扫描质子束(B) 进入光束弯曲磁体(A3),g)所述光束喷嘴(N)限定基本上垂直于质子束(B)的截面扫描区域(SF)在10至30cm 2的范围内, 和h)所述清扫器磁体(WT,WU)和所述光束弯曲磁体(A3)被控制以便保证在整个横截面扫描区域(SF)上的平行光束取向。

    particle therapy system
    23.
    发明公开
    particle therapy system 无效
    系统zur Ionenstrahltherapie

    公开(公告)号:EP1348465A1

    公开(公告)日:2003-10-01

    申请号:EP03006670.8

    申请日:2003-03-25

    申请人: Hitachi, Ltd.

    IPC分类号: A61N5/10 G21K1/093

    摘要: A particle therapy system is provided which can simply and quickly correct a beam orbit. In a particle therapy system provided with an irradiation facility comprising a first beam transport system for receiving a beam and transporting the beam to the patient side, and an irradiation nozzle for forming an irradiation field of the beam, the particle therapy system comprises first beam position monitors for detecting a position upstream of the irradiation nozzle at which the beam passes, second beam position monitors for detecting a position downstream of the irradiation nozzle at which the charged-particle beam passes, and first and second steering magnets. Correction bending amounts for causing the beam to be coincident with a predetermined orbit after the correction are determined in accordance with detected results from the first and second beam position monitors, and first and second steering magnets are excited under control so that the determined correction bending amounts are obtained.

    摘要翻译: 提供了一种可以简单快速地校正光束轨道的粒子治疗系统。 在设置有照射设备的粒子治疗系统中,所述照射设备包括用于接收光束并将光束传送到患者侧的第一光束传输系统和用于形成光束的照射场的照射喷嘴,所述粒子治疗系统包括第一光束位置 用于检测光束通过的照射喷嘴上游位置的监视器,用于检测带电粒子束通过的照射喷嘴下游的位置的第二光束位置监视器以及第一和第二转向磁体。 根据来自第一和第二光束位置监视器的检测结果确定用于使光束与校正后的预定轨道一致的校正弯曲量,并且在控制下激励第一和第二转向磁体,使得确定的校正弯曲量 获得。

    RASTER SCAN CONTROL SYSTEM FOR A CHARGED-PARTICLE BEAM
    24.
    发明公开
    RASTER SCAN CONTROL SYSTEM FOR A CHARGED-PARTICLE BEAM 失效
    一种充电颗粒光束的扫描扫描控制系统

    公开(公告)号:EP0465597A4

    公开(公告)日:1993-01-07

    申请号:EP90906574

    申请日:1990-03-30

    摘要: A raster scan control system (18) for use with a charged-particle beam delivery system (20) provides precise control of large currents driving an inductive load. The beam delivery system includes a nozzle through which a charged-particle beam (24), such as a proton beam, passes prior to being directed to a target (32). The nozzle includes both fast and slow sweep scan electromagnets (204, 208) that cooperate to generate a sweeping magnetic field that steers the beam along a desired raster scan pattern at the target. The electromagnets are driven by large currents (213, 215) from the raster scan control system. The raster scan control system includes both fast and slow power amplifiers (212, 214) for delivering the desired large currents to the fast and slow electromagnets, respectively; monitoring means (206, 210) for monitoring the magnetic fields; sensing means (212, 230) for sensing the large currents; feedback means for maintaining the magnetic fields and large current at desired levels; out of tolerance means for automatically causing the servo power amplifiers to steer the beam away from the target area in the event the error signal becomes excessive; a programmable raster generator (80) for providing the fast and slow power amplifiers with a raster scan signal (216, 218) that defines the desired raster pattern; and a power supply (74) for delivering the requisite power to the power amplifiers and other components.

    Dispositif de déviation magnétique stigmatique et achromatique d'un faisceau de particules chargées et appareil d'irradiation utilisant un tel dispositif
    27.
    发明公开
    Dispositif de déviation magnétique stigmatique et achromatique d'un faisceau de particules chargées et appareil d'irradiation utilisant un tel dispositif 失效
    装置对于由带电粒子的束的磁柱头和消色差偏转,并通过放射治疗装置中使用的装置。

    公开(公告)号:EP0018247A2

    公开(公告)日:1980-10-29

    申请号:EP80400389.5

    申请日:1980-03-21

    申请人: C.G.R. MeV

    发明人: Tronc, Dominique

    IPC分类号: G21K1/08 H01J49/20

    摘要: Dispositif de déviation magnétique achromatique permettant de dévier d'un angle ∅ compris entre π et 2π un faisceau de particules chargées, accélérées, ayant différents moments de quantité de mouvement.
    Ce dispositif comporte un électro-aimant muni de pièces polaires délimitant trois secteurs (M 1 , M 2 , M 3 ) accolés, l'ensemble de ces secteurs (M 1 , M 2 , M 3 ), d'axe de symétrie XX, présentant des faces d'entrée (E) et de sortie (S) planes et des faces communes (F 1 et F 2 ) en arc de cercle, la position, le rayon de courbure de ces faces (F 1 , F 2 ) ainsi que la valeur de l'induction magnétique dans les secteurs (M 1 , M 2 , M 3 ) étant choisis de telle sorte que les différentes trajectoires soient orthogonales à la fois aux faces (F 1 , F 2 ) et à l'axe XX.
    Ce dispositif peut être utilisé dans les appareils de radiothérapie.

    COMPACT ELECTRON ACCELERATOR COMPRISING FIRST AND SECOND HALF SHELLS
    29.
    发明公开
    COMPACT ELECTRON ACCELERATOR COMPRISING FIRST AND SECOND HALF SHELLS 审中-公开
    包含第一和第二半壳的紧凑型电子加速器

    公开(公告)号:EP3319403A1

    公开(公告)日:2018-05-09

    申请号:EP16197612.1

    申请日:2016-11-07

    IPC分类号: H05H7/18 H05H13/10

    摘要: The present invention concerns an electron accelerator comprising:
    (a) a resonant cavity (1) consisting of a hollow closed conductor
    (b) an electron source (20) adapted for radially injecting a beam of electrons (40) into the resonant cavity,
    (c) an RF system coupled to the resonant cavity and adapted for generating an electric field, E, to accelerate the electrons of the electron beam along radial trajectories,
    (d) at least one magnet unit (30i) comprising a deflecting magnet adapted for generating a magnetic field in a deflecting chamber (31) in fluid communication with the resonant cavity by at least one deflecting window (31w), the magnetic field being adapted for deflecting an electron beam emerging out of the resonant cavity through the at least one deflecting window along a first radial trajectory in the mid-plane, Pm, and to redirect the electron beam into the resonant cavity through the at least one deflecting window towards the central axis along a second radial trajectory,
    characterized in that, the resonant cavity is formed by:
    • a first half shell (11), having a cylindrical outer wall of inner radius, R, and of central axis, Zc,
    • a second half shell (12), having a cylindrical outer wall of inner radius, R, and of central axis, Zc, and
    • a central ring element (13) of inner radius, R, sandwiched at the level of the mid-plane, Pm, between the first and second half shells,
    wherein the surface forming the outer conductor section is formed by an inner surface of the cylindrical outer wall of the first and second half shells, and by an inner edge of the central ring element.

    摘要翻译: 本发明涉及一种电子加速器,它包括:(a)由中空闭合导体(b),适于将电子束(40)径向注入谐振腔的电子源(20)组成的谐振腔(1), c)耦合到谐振腔并适于产生电场E以沿着径向轨道加速电子束的电子的RF系统,(d)至少一个磁体单元(30i),所述磁体单元包括偏转磁体,所述偏转磁体适于产生 通过至少一个偏转窗口(31w)与偏转腔室(31)流体连通的偏转腔室(31)中的磁场,所述磁场适于偏转通过所述至少一个偏转窗口出射出谐振腔的电子束 沿着中平面中的第一径向轨道P m并且将电子束通过至少一个偏转窗口沿着第二径向轨道朝向中心轴重新引导到谐振腔中,c 其特征在于,所述谐振腔由以下部件形成:·第一半壳(11),其具有内半径R和中心轴Zc的圆柱形外壁·第二半壳(12),其具有圆柱形 内径的外壁R和中心轴线Zc;以及·内半径R的中心环元件(13),其夹在第一半壳和第二半壳之间的中平面Pm的高度处, 其中形成外导体部分的表面由第一和第二半壳的圆柱形外壁的内表面以及中心环元件的内边缘形成。

    BEAM DELIVERY SYSTEM AND PARTICLE BEAM THERAPY DEVICE

    公开(公告)号:EP3193567A4

    公开(公告)日:2018-05-09

    申请号:EP14901528

    申请日:2014-09-12

    摘要: An object of this invention is to transport a charged particle beam having a distribution in which the particle-number variation at its end is moderate, without undesirably increasing the beam size. Assuming that a direction perpendicular to a traveling direction of the charged particle beam and passing from a center of the beam to its steep portion is an x-direction, a beam shaping device (10) included in a beam transport system (30) is provided with: a pre- stage quadrupole electromagnet (3) that reduces a distribution width of x-angle components (x') that are inclinations in the x-direction of the charged particles in the beam with respect to the traveling direction; a penumbra expander (1) that moderates an end profile of a particle-number distribution of the x-angle components (x') in the beam having passed through the pre-stage quadrupole electromagnet (3); and a post-stage quadrupole electromagnet (4) that adjusts a betatron phase in a phase-space distribution in the x-direction, of the beam having passed through the penumbra expander (1); wherein the post-stage quadrupole electromagnet (4) adjusts a phase advance angle of the betatron phase from the penumbra expander (1) to the isocenter (IC), to be in a range of an odd multiple of 90° ± 45°.