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    Microwave ion source
    1.
    发明授权
    Microwave ion source 失效
    MICROWAVE离子源

    公开(公告)号：US5053678A

    公开(公告)日：1991-10-01

    申请号：US323837

    申请日：1989-03-15

    申请人： Hidemi Koike ,  Noriyuki Sakudo ,  Katsumi Tokiguchi ,  Takayoshi Seki ,  Kensuke Amemiya

    发明人： Hidemi Koike ,  Noriyuki Sakudo ,  Katsumi Tokiguchi ,  Takayoshi Seki ,  Kensuke Amemiya

    IPC分类号： H01J27/18

    CPC分类号： H01J27/18

    摘要： A microwave ion source suitable for an apparatus which requires ions of an element of high reactivity such as oxygen, fluorine, etc., the microwave ion source being arranged to transmit microwaves between outer and inner conductors of a coaxial line. An ion extraction electrode is formed at least partly of a low magnetic permeability material while an acceleration electrode is formed of a high magnetic permeability material. The acceleration electrode is formed so as to have a structure in which a low magnetic permeability material of a certain thickness is stacked on the high magnetic permeability material at a plasma chamber side and openings of ion exit holes are formed in the portion of the low magnetic permeability material. A permanent magnet constituting a magnetic field generating means is provided to surround the microwave lead-in coaxial line. The direction of magnetization of the permanent magnet is made to coincide with the axial direction of the coaxial line. The end surface of the permanent magnet at the microwave lead-in side is coupled with the periphery of the high magnetic permeability material of the acceleration electrode through another high magnetic permeability material to form a magnetic path. The plasma chamber is formed of a dielectric insulator which transmits microwaves well. It is possible to realize an ion source in which ions can be extracted with a high electric field, and in which a high current ion beam can be extracted for a long time.

    Variable-frequency type radio-frequency quadrupole accelerator including quadrupole cooling means
    3.
    发明授权
    Variable-frequency type radio-frequency quadrupole accelerator including quadrupole cooling means 失效
    包括四极冷却装置的可变频率型射频四极加速器

    公开(公告)号：US5506472A

    公开(公告)日：1996-04-09

    申请号：US240319

    申请日：1994-05-10

    申请人： Junya Ito ,  Katsumi Tokiguchi ,  Kensuke Amemiya ,  Noriyuki Sakudo

    发明人： Junya Ito ,  Katsumi Tokiguchi ,  Kensuke Amemiya ,  Noriyuki Sakudo

    IPC分类号： H05H7/04 ,  H05H7/02 ,  H05H9/00 ,  H01J19/74

    CPC分类号： H05H7/02

    摘要： A secondary coil forming a resonant circuit in cooperation with a quadrupole is composed of conductive tubes and cooled by feeding coolant such as pure water into the tubes which serve as coolant passages. This makes it possible to minimize thermal deformation of the secondary coil when a variable-frequency type radio-frequency quadrupole accelerator is driven with a large amount of power. As a result, variation of the resonant frequency of the resonant circuit, resulting from the deformation of the secondary coil, can be minimized. Consequently, a given ion acceleration ability can be provided. When a coolant passage for use in cooling the primary coil is included and coolant such as pure water is fed into the coolant passage, thermal deformation of the primary coil can be minimized. Thus, impedance matching with the resonant circuit can be maintained on a stable basis. When the secondary coil is made by aligning several unit secondary coils in the axial direction of the quadrupole, the resonant frequency can be varied by mounting or dismounting the unit secondary coils independently.

    摘要翻译： 与四极合作形成谐振电路的次级线圈由导电管组成，并通过将诸如纯净水的冷却剂送入用作冷却剂通道的管中来冷却。 这使得当以大量功率驱动可变频率型射频四极加速器时，可以最小化次级线圈的热变形。 结果，由二次线圈的变形引起的谐振电路的谐振频率的变化可以最小化。 因此，可以提供给定的离子加速能力。 当包括用于冷却初级线圈的冷却剂通道时，诸如纯水的冷却剂被供给到冷却剂通道中，可以使初级线圈的热变形最小化。 因此，可以在稳定的基础上保持与谐振电路的阻抗匹配。 当通过在四极杆的轴向对准多个单元次级线圈来制造次级线圈时，可以通过独立地安装或拆卸单元次级线圈来改变谐振频率。

    Ion implanting apparatus
    4.
    发明授权
    Ion implanting apparatus 失效
    离子注入装置

    公开(公告)号：US5349196A

    公开(公告)日：1994-09-20

    申请号：US43794

    申请日：1993-04-07

    申请人： Kensuke Amemiya ,  Yoshimi Hakamata ,  Katsumi Tokiguchi ,  Noriyuki Sakudo

    发明人： Kensuke Amemiya ,  Yoshimi Hakamata ,  Katsumi Tokiguchi ,  Noriyuki Sakudo

    IPC分类号： C23C14/48 ,  H01J37/30 ,  H01J37/317 ,  H01L21/265

    CPC分类号： H01J37/3007 ,  H01J37/3171

    摘要： An ion implanting apparatus includes a magnetic quadrupole lens disposed between an ion source and an RFQ accelerator. The magnetic quadrupole lens carries out mass spectrometry of an ion beam extracted from the ion source while converging the ion beam, and reduces the divergence of the ion beam due to the space charge effect as compared to an electrostatic quadrupole lens. The use of the magnetic quadrupole lens makes it possible to utilize to a maximum extent the ion beam extracted from the ion source and to restrict to a minimum the reduction in the current of the ion beam during passage of the ion beam, thereby making it possible to generate a high-energy ion beam having a large current on the order of several tens of milliamperes.

    摘要翻译： 离子注入装置包括设置在离子源和RFQ加速器之间的磁性四极透镜。 磁性四极杆透镜在离子束收敛时进行从离子源提取的离子束的质谱，并且与静电四极透镜相比，由于空间电荷效应而减小离子束的发散。 使用磁性四极透镜使得可以最大程度地利用从离子源提取的离子束并且在离子束通过期间限制离子束的电流的最小化，从而使其成为可能 以产生具有大约几十毫安量级的大电流的高能离子束。

    Radiological imaging apparatus
    7.
    发明授权
    Radiological imaging apparatus 有权
    放射成像装置

    公开(公告)号：US07627082B2

    公开(公告)日：2009-12-01

    申请号：US11907115

    申请日：2007-10-09

    申请人： Shinichi Kojima ,  Takashi Okazaki ,  Yuuichirou Ueno ,  Kikuo Umegaki ,  Kensuke Amemiya ,  Kazuhiro Takeuchi ,  Hiroshi Kitaguchi ,  Kazuma Yokoi ,  Norihito Yanagita

    发明人： Shinichi Kojima ,  Takashi Okazaki ,  Yuuichirou Ueno ,  Kikuo Umegaki ,  Kensuke Amemiya ,  Kazuhiro Takeuchi ,  Hiroshi Kitaguchi ,  Kazuma Yokoi ,  Norihito Yanagita

    IPC分类号： A61B6/00

    CPC分类号： G01T1/1611 ,  A61B6/037 ,  A61B6/4241 ,  A61B6/5235 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612 ,  G01T1/2985 ,  Y10S378/901

    摘要： A radiological imaging apparatus of the present invention comprises an image pickup device and a medical examinee holding device that is provided with a bed. The image pickup device includes a large number of radiation detectors and radiation detector support plates. A large number of radiation detectors are mounted around the circumference of a through-hole and arranged in the axial direction of the through-hole. The radiation detectors are arranged in three layers formed radically with respect to the center of the through-hole and mounted on the lateral surfaces of the radiation detector support plates. Since the radiation detectors are not only arranged in the axial direction and circumferential direction of the through-hole but also arrayed in the radial direction, it is possible to obtain accurate information about a γ-ray arrival position in the radial direction of the through-hole (the positional information about a radiation detector from which a γ-ray image pickup signal is output). The use of accurate information about γ-ray arrival increases the tomogram accuracy. As a result, the present invention enhances the tomogram accuracy, that is, the PET examination accuracy.

    摘要翻译： 本发明的放射学成像装置包括：图像拾取装置和设有床的医疗检查者保持装置。 图像拾取装置包括大量的辐射检测器和辐射检测器支撑板。 大量的辐射探测器安装在通孔的圆周周围并沿通孔的轴向布置。 辐射检测器被布置成相对于通孔的中心从根部形成的三层，并安装在辐射检测器支撑板的侧表面上。 由于辐射检测器不仅沿着通孔的轴向方向和圆周方向布置，而且沿径向排列，可以获得关于通孔的径向方向上的伽马射线到达位置的准确信息， （关于从其输出伽马射线摄像信号的放射线检测器的位置信息）。 使用关于伽马射线到达的准确信息增加了断层图像的准确性。 结果，本发明增强了断层图像精度，即PET检查精度。

    Radiation detection module, printed circuit board, and radiological imaging apparatus
    8.
    发明授权
    Radiation detection module, printed circuit board, and radiological imaging apparatus 有权
    辐射检测模块，印刷电路板和放射成像装置

    公开(公告)号：US07541593B2

    公开(公告)日：2009-06-02

    申请号：US11517437

    申请日：2006-09-08

    申请人： Norihito Yanagita ,  Katsutoshi Tsuchiya ,  Hiroshi Kitaguchi ,  Kensuke Amemiya ,  Yuichiro Ueno ,  Kazuma Yokoi ,  Ryuji Jinnai

    发明人： Norihito Yanagita ,  Katsutoshi Tsuchiya ,  Hiroshi Kitaguchi ,  Kensuke Amemiya ,  Yuichiro Ueno ,  Kazuma Yokoi ,  Ryuji Jinnai

    IPC分类号： H01L27/14

    CPC分类号： G01T1/2985 ,  A61B6/037

    摘要： There are provided a radiation detection module, a printed circuit board, and a radiological imaging apparatus which make it possible to enhance spatial resolution without increasing channel number, and thereby to perform high-accuracy diagnosis. The radiation detection module includes a plurality of radiation detectors, and a wiring board on which the plurality of radiation detectors are mounted in a manner of being arranged in at least a radiation traveling direction. Here, on the wiring board, a pair of the radiation detectors which are adjacent to each other in the radiation traveling direction are electrically connected to each other, thereby configuring one detector structure (i.e., detection channel). Moreover, the radiation detectors are mounted onto the wiring board such that respective connection parts of electrodes, which are to be electrically connected to each other, are in a mutually-facing state.

    摘要翻译： 提供了一种辐射检测模块，印刷电路板和放射成像装置，其可以在不增加通道数的情况下增强空间分辨率，从而执行高精度诊断。 放射线检测模块包括多个辐射检测器和布置基板，多个辐射检测器以布置在至少一个辐射传播方向上的方式安装在该布线板上。 这里，在配线基板上，在辐射行进方向上彼此相邻的一对辐射检测器电连接，从而构成一个检测结构（即，检测通道）。 此外，辐射检测器被安装到布线板上，使得彼此电连接的电极的相应连接部分处于相互面对的状态。