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    1.
    发明专利
    未知

    公开(公告)号：DE69733730D1

    公开(公告)日：2005-08-25

    申请号：DE69733730

    申请日：1997-05-02

    Applicant: HAMAMATSU PHOTONICS KK

    Inventor： SUYAMA MOTOHIRO ,  KAWAI YOSHIHIKO ,  KIMURA SUENORI ,  HIRANO KEN ,  ASAKURA NORIO ,  MORITA TETSUYA

    IPC: G01J1/02 ,  G01J1/42 ,  H01J40/04 ,  H01J43/04 ,  H01J43/08 ,  H01J43/28 ,  H01J43/06

    Abstract: This invention relates to an electron tube which stabilizes the orbits of electrons accelerated and focused by an electron lens and has a structure for effectively suppressing noise generated due to discharge. This electron tube has, at two ends of an insulating container, a cathode electrode (3) and an anode electrode (6) which constitute the electron lens. Particularly, in the electron tube, one end of the cathode electrode (3) and a photocathode (16) are supported by a conductive member (2,4) arranged at one end of the insulating container (5), and the cathode electrode is electrically connected to the photocathode. The cathode electrode (3) partially extends to a stem (10) along the inner wall (502) of the insulating container (5) and is tapered toward the stem so that the distal end portion of the cathode electrode is separated from the inner wall of the insulating container. Therefore, the electron tube realizes, regardless of the size of the insulating container, a structure for preventing the insulating container from being charged and suppressing discharge followed by light emission between the cathode electrode and the insulating container.

    3.
    发明专利
    未知

    公开(公告)号：DE69725394T2

    公开(公告)日：2004-07-22

    申请号：DE69725394

    申请日：1997-07-16

    Applicant: HAMAMATSU PHOTONICS KK

    Inventor： SUYAMA MOTOHIRO ,  KIMURA SUENORI ,  ASAKURA NORIO ,  HIRANO KEN ,  KAWAI YOSHIHIKO ,  HASEGAWA YUTAKA ,  MORITA TETSUYA

    IPC: H01J43/28

    Abstract: The present invention relates to an electron tube comprising, at least, a cathode electrode and a face plate having a photocathode which are arranged at one end of a body, and a stem arranged at the other end of the body for defining the position of an electron entrance surface where the electron emitted from the photocathode reaches. The object of the present invention is to provide an electron tube which can reduce its size and has a structure for improving the workability in its assembling process. In particular, the electron tube in accordance with the present invention comprises a bonding ring, provided between the face plate and the cathode electrode, for bonding the face plate and the cathode electrode together. The bonding ring is made of a metal material selected from the group consisting of In, Au, Pb, alloys containing In, and alloys containing Pb.

    Optical measurement apparatus and method for optical measurement
    4.
    发明专利
    Optical measurement apparatus and method for optical measurement 未知

    公开(公告)号：AU7444100A

    公开(公告)日：2002-04-08

    申请号：AU7444100

    申请日：2000-09-25

    Applicant: HAMAMATSU PHOTONICS KK

    Inventor： SUYAMA MOTOHIRO ,  KAWAI YOSHIHIKO ,  MORITA TETSUYA ,  OBA KOICHIRO

    IPC: G01J1/44 ,  G01J1/42 ,  G01J11/00 ,  H01L31/10

    Abstract: An optical measurement apparatus 10 primarily includes: a photon detection unit 12 for detecting incident photons, a time signal output unit 14 for outputting a time signal, and a storage unit 16 for storing the time signal outputted from the time signal output unit 14 when the photon detection unit 12 detects photons. The photon detection unit 12 includes a HPD 24 having a photocathode 24a and an APD 24b, a TZ amplifier 26, a peak holding circuit 28, and an A/D converter 30. The time signal output unit 14 includes a timer 32 and a counter 34. The storage unit 16 includes a comparator 36 and a memory 38. When photons impinge on the HPD 24, a trigger signal is outputted from the comparator 36, causing the photon-number outputted from the A/D converter 30 and the time data outputted from the counter 34 to be stored in the memory 38.

    Light receiving module for radiation detecting apparatus
    6.
    发明专利
    Light receiving module for radiation detecting apparatus 未知

    公开(公告)号：GB2361802A

    公开(公告)日：2001-10-31

    申请号：GB0010295

    申请日：2000-04-27

    Applicant: HAMAMATSU PHOTONICS KK

    Inventor： ISHIZU TOMOHIRO ,  MORITA TETSUYA

    IPC: G01T1/20 ,  H01J43/28

    Abstract: To prevent displacement of a photomultiplier 10 of a light-receiving module 1 of a heat-resistant, vibration-resistant type for use in petroleum exploration or the like, the module comprises the photomultiplier 10 having a faceplate 11 and a stem 12 opposing each other, a bleeder circuit board 20 provided so as to sandwich the stem together with the faceplate and electrically connected to the photomultiplier, a module case 30 provided so as to accommodate the photomultiplier and the bleeder circuit board, said module case having an opening 31 for exposing the faceplate of the photomultiplier, a step (34,fig 3B) provided on an inner surface of the module case 30, and a stopper 40 seated on the step, defining the position of the photomultiplier in the module case. The stopper 40 may be a separate member of polyimide or polyomide-imide resin, or may be provided by an enlarged step (34). It may have a contact surface 42 which is inclined (figs 7-11) which assists in keeping the faceplate 11 parallel with the opening 31 even if the stem 12 is not parallel to the faceplate 11. The module 1 may be used in combination with a scintillator (52,fig 6).

    Light receiving module for radiation detecting apparatus
    7.
    发明专利
    Light receiving module for radiation detecting apparatus 未知

    公开(公告)号：GB2405527A

    公开(公告)日：2005-03-02

    申请号：GB0424948

    申请日：2000-04-27

    Applicant: HAMAMATSU PHOTONICS KK

    Inventor： ISHIZU TOMOHIRO ,  MORITA TETSUYA

    IPC: G01T1/20 ,  H01J43/28

    Abstract: To prevent displacement of a photomultiplier 10 of a light-receiving module 1, the module comprises the photomultiplier 10 having a faceplate 11 and a stem 12, a bleeder circuit board 20 provided so as to sandwich the stem together with the faceplate and electrically connected to the photomultiplier, a module case 30 provided so as to accommodate the photomultiplier and the circuit board, said module case having an opening 31 for exposing the faceplate of the photomultiplier, a step (34, fig 3B) provided on an inner surface of the module case 30, and a stopper 40 seated on the step, defining the position of the photomultiplier in the module case, wherein space within the module case where the bleeder circuit board is installed is filled with a potting compound 35 such as a silicon resin. The stopper 40 may be a separate member of polyimide or polyamide-imide resin, or may be provided by an enlarged step. The module 1 may be used in combination with a scintillator (52, fig 6).

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