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    • 1. 发明授权
    • Particle beam irradiation apparatus utilized in medical field
    • 用于医疗领域的粒子束照射装置
    • US08658991B2
    • 2014-02-25
    • US13003688
    • 2009-06-03
    • Yuehu PuKatsuhisa YoshidaYuichi YamamotoHidenobu SakamotoTaizo HondaHisashi HaradaTakaaki Iwata
    • Yuehu PuKatsuhisa YoshidaYuichi YamamotoHidenobu SakamotoTaizo HondaHisashi HaradaTakaaki Iwata
    • A61N5/00
    • A61N5/10A61N5/1043A61N2005/1087
    • In order to obtain a particle beam irradiation apparatus that enlarges the dose distribution of beam spots while suppressing a decrease of the maximum available range of a charged particle beam, the particle beam irradiation apparatus includes a particle beam acceleration means; particle beam transport means; scanning apparatus that includes first scanning means and second scanning means, and two-dimensionally scans the beam; and irradiation control means that controls the scanning apparatus so as to irradiate the beam onto a target region including a plurality of small regions. The irradiation control means controls the first scanning means so as to scan the beam over a small region serving as an irradiation subject among the plurality of the small regions, and controls the second scanning means so as to change the small region serving as the irradiation subject to be a different small region among the plurality of the small regions.
    • 为了获得粒子束照射装置,其粒子束照射装置包括粒子束加速装置,粒子束照射装置在抑制带电粒子束的最大可用范围的减小的同时,扩大束斑的剂量分布, 粒子束传送装置; 扫描装置,其包括第一扫描装置和第二扫描装置,并二维地扫描光束; 以及照射控制装置,其控制扫描装置以将束照射到包括多个小区域的目标区域上。 照射控制装置控制第一扫描装置,以便在多个小区域中的用作照射对象的小区域上扫描光束,并且控制第二扫描装置以改变用作照射对象的小区域 成为多个小区域中的不同小区域。
    • 2. 发明申请
    • PARTICLE BEAM IRRADIATION APPARATUS
    • 颗粒光束辐射装置
    • US20110108737A1
    • 2011-05-12
    • US13003688
    • 2009-06-03
    • Yuehu PuKatsuhisa YoshidaYuichi YamamotoHidenobu SakamotoTaizo HondaHisashi HaradaTakaaki Iwata
    • Yuehu PuKatsuhisa YoshidaYuichi YamamotoHidenobu SakamotoTaizo HondaHisashi HaradaTakaaki Iwata
    • H01J37/147
    • A61N5/10A61N5/1043A61N2005/1087
    • In order to obtain a particle beam irradiation apparatus that enlarges the dose distribution of beam spots while suppressing a decrease of the maximum available range of a charged particle beam, the particle beam irradiation apparatus includes a particle beam acceleration means; particle beam transport means; scanning apparatus that includes first scanning means and second scanning means, and two-dimensionally scans the beam; and irradiation control means that controls the scanning apparatus so as to irradiate the beam onto a target region including a plurality of small regions. The irradiation control means controls the first scanning means so as to scan the beam over a small region serving as an irradiation subject among the plurality of the small regions, and controls the second scanning means so as to change the small region serving as the irradiation subject to be a different small region among the plurality of the small regions.
    • 为了获得粒子束照射装置,其粒子束照射装置包括粒子束加速装置,粒子束照射装置在抑制带电粒子束的最大可用范围的减小的同时,扩大束斑的剂量分布, 粒子束传送装置; 扫描装置,其包括第一扫描装置和第二扫描装置,并二维地扫描光束; 以及照射控制装置,其控制扫描装置以将束照射到包括多个小区域的目标区域上。 照射控制装置控制第一扫描装置,以便在多个小区域中的用作照射对象的小区域上扫描光束,并且控制第二扫描装置以改变用作照射对象的小区域 成为多个小区域中的不同小区域。
    • 6. 发明授权
    • Magnetic resonance imaging method
    • 磁共振成像方法
    • US4965520A
    • 1990-10-23
    • US284419
    • 1988-12-14
    • Hidenobu Sakamoto
    • Hidenobu Sakamoto
    • G01R33/54
    • G01R33/4828
    • In an NMR imaging method, the phase encode amount applied to the respective echo signals in the same sequence of operation are made to have different values and the phase encoding magnetic fields Gen are made to disorder the phases of the NMR signals so as not to generate stimulated echo signals. In another aspect, the time periods of application of the signal reading magnetic field Gp applied between the 90.degree. RF pulse and the 180.degree. RF pulse are made to have different values equal in number to the chemical shifts. By varying the time period of application of the signal reading magnetic field, spin echo signals having different phase variance amounts due to the different chemical shifts are generated before or after the time point at which the spin echo due to the RF pulse is expected to occur. Accordingly, control difficulties for synchronizing the RF pulse and the slicing magnetic field and shifting them by the same time length is avoided wherein two chemical shifts can be separated.
    • 在NMR成像方法中,以相同的操作顺序施加到各个回波信号的相位编码量使得具有不同的值,并且使相位编码磁场Gen成为使NMR信号的相位紊乱从而不产生 刺激的回波信号。 另一方面,在90°RF脉冲和180°RF脉冲之间施加信号读取磁场Gp的时间周期被制成具有与化学位移相等数量的不同值。 通过改变施加信号读取磁场的时间周期,在由于RF脉冲引起的自旋回波预期发生的时间点之前或之后产生由于不同的化学位移而具有不同相位变化量的自旋回波信号 。 因此,避免了使RF脉冲和切片磁场同步并将其移位相同时间长度的控制困难,其中两个化学位移可以分离。
    • 7. 发明授权
    • Spool distortion correction method for an x-ray radiograph diagnosis
device
    • 用于X射线X光片诊断装置的假脱机畸变校正方法
    • US5263074A
    • 1993-11-16
    • US869506
    • 1992-04-16
    • Hidenobu Sakamoto
    • Hidenobu Sakamoto
    • H01J31/50A61B6/00G01T1/164H05G1/60H05G1/64
    • H05G1/60
    • In accordance with the distortion correction method for an X-ray radiograph diagnosis device, the distortion center of the X-ray image is determined by use of a plate-shaped object having a circular marker M and a marker center M.sub.0. On the basis of the positions of the sample points M.sub.1 through M.sub.4 upon the circular marker M, the distortion center is inferred. Further, a grid marker pattern is used to determine the magnitudes of pincushion distortion at respective distances from the distortion center. The correction coefficients for correcting the spool distortion at respective distances from the distortion center are determined on the basis of the relationship between the physical and displayed distances from the marker center M.sub.0 to the sample points.
    • 根据X射线摄影诊断装置的畸变校正方法,通过使用具有圆形标记M和标记中心M0的板状物体来确定X射线图像的畸变中心。 基于圆形标记M上的采样点M1至M4的位置,推断变形中心。 此外,使用网格标记图案来确定在与失真中心相距的距离处的枕形失真的幅度。 基于从标记中心M0到采样点的物理距离和显示距离之间的关系来确定用于校正来自失真中心的各距离的线轴失真的校正系数。