公开(公告)号：WO2006080104A3

公开(公告)日：2007-07-05

申请号：PCT/JP2005014142

申请日：2005-07-27

Applicant: HAMAMATSU PHOTONICS KK ,  NAKAMURA KIMITSUGU ,  OOHASHI YOUSUKE ,  OHISHI KEIICHI ,  ITO MASUO

Inventor： NAKAMURA KIMITSUGU ,  OOHASHI YOUSUKE ,  OHISHI KEIICHI ,  ITO MASUO

IPC: H01J43/18 ,  H01J43/22 ,  H01J43/26

CPC classification number: H01J43/22 ,  H01J43/18 ,  H01J43/26

Abstract: This invention relates to an electron multiplier unit and others enabling cascade multiplication of electrons through successive emission of secondary electrons in multiple stages in response to incidence of primary electrons. The electron multiplier unit has a first support member provided with an inlet aperture for letting primary electrons in, and a second support member located so as to face the first support member. These first and second support members hold an electron multiplication section for the cascade multiplication and an anode. The electron multiplication section comprises at least a first dynode of a box type and a second dynode having a reflection type secondary electron emission surface located so as to face the first dynode and arranged to receive secondary electrons from the first dynode and to emit secondary electrons to a side where the first dynode is located. The anode is located at a position where the secondary electrons emitted from the first dynode do not directly arrive, and the second dynode alters a travel path of secondary electrons so as to be kept in a space between the first and second support members.

Abstract translation: 本发明涉及电子倍增器单元和其它能够响应于初级电子的入射而以多级连续发射二次电子的电子级联乘法。 电子倍增器单元具有第一支撑构件，该第一支撑构件设置有用于使一次电子入口的入口孔和位于第一支撑构件的第二支撑构件。 这些第一和第二支撑构件保持用于级联乘法和阳极的电子倍增部分。 电子倍增部分至少包括箱型的第一倍增极和具有反射型二次电子发射表面的第二倍增电极，所述反射型二次电子发射表面定位成面对第一倍增电极并被布置成从第一倍增电极接收二次电子并发射二次电子 第一个倍极管所在的一侧。 阳极位于从第一倍增电极发射的二次电子不直接到达的位置，并且第二倍增极改变二次电子的行进路径，以便保持在第一和第二支撑构件之间的空间中。

公开(公告)号：DE69615958D1

公开(公告)日：2001-11-22

申请号：DE69615958

申请日：1996-07-19

Applicant: HAMAMATSU PHOTONICS KK

Inventor： KYUSHIMA HIROYUKI ,  NAKAMURA KIMITSUGU ,  KIMURA SUENORI ,  OOHASHI YOUSUKE ,  OHMURA TAKAYUKI ,  ITO MASUO

IPC: H01J43/20 ,  H01J43/04

Abstract: Photomultiplier tube (1) having a photocathode (5) for emitting photoelectrons to an electron multiplication portion (6). The electron multiplication portion (6) includes a first dynode (Dy1) and a second dynode (Dy2) in confrontation with the first dynode (Dy1). The second dynode (Dy2) has a secondary electron emission which is substantially saturated with respect to an electric voltage applied thereto, or which is fixed with respect to electrons that are originated from the first dynode (Dy1) and other electrons that are reflected off the first dynode (Dy1).

公开(公告)号：DE69518703T2

公开(公告)日：2001-01-04

申请号：DE69518703

申请日：1995-06-20

Applicant: HAMAMATSU PHOTONICS KK

Inventor： NAKAMURA KIMITSUGU ,  SAHARA MASAYOSHI ,  ISHIKAWA ATUSHI ,  OKUYAMA CHIYOSHI ,  TAKEUCHI JUNICHI

IPC: H01J43/20 ,  H01J1/90 ,  H01J9/18 ,  H01J29/02 ,  H01J43/06

公开(公告)号：DE69512695D1

公开(公告)日：1999-11-18

申请号：DE69512695

申请日：1995-03-06

Applicant: HAMAMATSU PHOTONICS KK

Inventor： NAKAMURA KIMITSUGU ,  FUJITA YOSHIO ,  OHISHI KEIICHI

IPC: H01J43/26 ,  H01J43/06

Abstract: A photomultiplier of the present invention includes a photoelectric surface for photoelectrically converting incident light and emitting electrons, and a plurality of stages of dynodes for multiplying the electrons. The photomultiplier includes the box dynodes (1,2,3) for receiving the electrons emitted from the photoelectric surface and the in-line dynodes (5,6,7) for receiving the electrons emitted from the connecting dynode (4).

公开(公告)号：GB2202988A

公开(公告)日：1988-10-05

申请号：GB8803298

申请日：1988-02-12

Applicant: HAMAMATSU PHOTONICS KK

Inventor： NAKAMURA KIMITSUGU ,  ITO MASUO

IPC: H01J43/06 ,  H01J43/28 ,  H01J43/04

Abstract: A photomultiplier for converting an incident weak light into multiplied electrons to thereby output an electrical signal corresponding to the intensity of the incidence light. The photomultiplier comprises a photocathode for emitting primary electrons; plural dynodes for emitting secondary electrons in response to incident of the primary electrons and multiplying first secondary electrons passing between the dynodes; and shield means for preventing second secondary electrons emitted from a first dynode of the dynodes toward the photocathode from returning to the dynodes, thereby to reduce the generation of a residual pulse currents caused by the second secondary electrons and to accurately detect a main pulse current caused by the first secondary electrons.

公开(公告)号：DE69615958T2

公开(公告)日：2002-04-25

申请号：DE69615958

申请日：1996-07-19

Applicant: HAMAMATSU PHOTONICS KK

Inventor： KYUSHIMA HIROYUKI ,  NAKAMURA KIMITSUGU ,  KIMURA SUENORI ,  OOHASHI YOUSUKE ,  OHMURA TAKAYUKI ,  ITO MASUO

IPC: H01J43/20 ,  H01J43/04

Abstract: Photomultiplier tube (1) having a photocathode (5) for emitting photoelectrons to an electron multiplication portion (6). The electron multiplication portion (6) includes a first dynode (Dy1) and a second dynode (Dy2) in confrontation with the first dynode (Dy1). The second dynode (Dy2) has a secondary electron emission which is substantially saturated with respect to an electric voltage applied thereto, or which is fixed with respect to electrons that are originated from the first dynode (Dy1) and other electrons that are reflected off the first dynode (Dy1).

公开(公告)号：DE69329427T2

公开(公告)日：2001-03-01

申请号：DE69329427

申请日：1993-05-24

Applicant: HAMAMATSU PHOTONICS KK

Inventor： NAKAMURA KIMITSUGU ,  HASHIMOTO TAKEO ,  WASHIYAMA HIROAKI ,  KUROYANAGI TOMIHIKO

IPC: H01J43/06 ,  H01J43/20

Abstract: An electron lens electrode (5) for guiding photoelectrons emitted from a photocathode (2) to an electron multiplier section is arranged between the photocathode and the light-incident portion of a sealed container, and an opening (15a) is formed at a portion of the electron lens electrode opposing the light-incident portion. Incident light reaches the photocathode through the opening without being scattered or absorbed at all. The transmittance of light incident on a photomultiplier is improved, and the output waveform is uniformed, resulting in an improved S/N ratio.

公开(公告)号：DE69205167T2

公开(公告)日：1996-04-04

申请号：DE69205167

申请日：1992-10-06

Applicant: HAMAMATSU PHOTONICS KK

Inventor： NIGAKI MINORU ,  IHARA TUNEO ,  HIROHATA TORU ,  SUZUKI TOMOKO ,  NAKAMURA KIMITSUGU ,  ASAKURA NORIO ,  YAMADA MASAMI ,  NEGI YASUHARU ,  KUROYANAGI TOMIHIKO ,  MIZUSHIMA YOSHIHIKO

IPC: H01J1/34

公开(公告)号：GB2205438A

公开(公告)日：1988-12-07

申请号：GB8809074

申请日：1988-04-18

Applicant: HAMAMATSU PHOTONICS KK ,  JAPAN RES DEV CORP

Inventor： KYUSHIMA HIROYUKI ,  NAKAMURA KIMITSUGU ,  KATO TAKAHITO

IPC: H01J43/04 ,  H01J43/20 ,  H01J43/28 ,  H01J43/10

公开(公告)号：FR2611084A1

公开(公告)日：1988-08-19

申请号：FR8801742

申请日：1988-02-15

Applicant: HAMAMATSU PHOTONICS KK

Inventor： NAKAMURA KIMITSUGU ,  ITO MASUO

IPC: H01J43/06 ,  H01J43/28

Abstract: A photomultiplier for converting an incident weak light into multiplied electrons to thereby output an electrical signal corresponding to the intensity of the incidence light. The photomultiplier comprises a photocathode for emitting primary electrons; plural dynodes for emitting secondary electrons in response to incident of the primary electrons and multiplying first secondary electrons passing between the dynodes; and shield means for preventing second secondary electrons emitted from a first dynode of the dynodes toward the photocathode from returning to the dynodes, thereby to reduce the generation of a residual pulse currents caused by the second secondary electrons and to accurately detect a main pulse current caused by the first secondary electrons.