公开(公告)号：US20060164008A1

公开(公告)日：2006-07-27

申请号：US11182080

申请日：2005-07-15

申请人： Kimitsugu Nakamura ,  Yousuke Oohashi ,  Keiichi Ohishi ,  Masuo Ito

发明人： Kimitsugu Nakamura ,  Yousuke Oohashi ,  Keiichi Ohishi ,  Masuo Ito

IPC分类号： H01J43/18

CPC分类号： H01J43/22 ,  H01J43/18 ,  H01J43/26

摘要： 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. The first support member is provided with a focusing electrode functioning to alter trajectories of the primary electrons, in order to guide the primary electrons to the inlet aperture. 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.

摘要翻译： 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。 第一支撑构件设置有用于改变初级电子的轨迹的聚焦电极，以便将一次电子引导到入口孔。 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：US5616987A

公开(公告)日：1997-04-01

申请号：US560122

申请日：1995-11-17

申请人： Takayuki Ohmura ,  Tomoyuki Okada ,  Hiroyuki Kyushima ,  Yousuke Oohashi

发明人： Takayuki Ohmura ,  Tomoyuki Okada ,  Hiroyuki Kyushima ,  Yousuke Oohashi

IPC分类号： H01J43/22 ,  H01J43/06 ,  H01J43/20

CPC分类号： H01J43/06

摘要： A mesh electrode 9 is provided over an incident opening 7a of the electron multiplication portion 6. In the electron multiplication portion 6, a dynode group Dy is located downstream of a first dynode Dy1 for multiplying electrons supplied from the first dynode Dy1. The dynode group Dy is provided in the vicinity of the curvature center of the first dynode Dy1. A plate electrode 10 and a mesh electrode 9 are supplied with a potential intermediate between the potentials applied to the first dynode Dy1 and applied to the dynode group Dy. Accordingly, the electric field formed due to the potential difference between the first dynode Dy1 and the dynode group Dy is surrounded by the intermediate potentials. The electric field is therefore uniformly distributed over the region from the vicinity of the first dynode Dy1 toward the dynode group Dy.

摘要翻译： 网电极9设置在电子倍增部6的入射开口7a的上方。在电子倍增部6中，倍增极组Dy位于第一倍增电极Dy1的下游，用于乘以从第一倍增电极Dy1提供的电子。 倍增极组Dy设置在第一倍增电极Dy1的曲率中心附近。 平板电极10和网状电极9在施加到第一倍增电极Dy1的电位和施加到倍增极组Dy之间的电位之间被提供。 因此，由于第一倍增电极Dy1和倍增极组Dy之间的电位差而形成的电场被中间电位包围。 因此，电场均匀分布在从第一倍增极Dy1的附近朝向倍增极组Dy的区域。

公开(公告)号：US07495392B2

公开(公告)日：2009-02-24

申请号：US11182080

申请日：2005-07-15

申请人： Kimitsugu Nakamura ,  Yousuke Oohashi ,  Keiichi Ohishi ,  Masuo Ito

发明人： Kimitsugu Nakamura ,  Yousuke Oohashi ,  Keiichi Ohishi ,  Masuo Ito

IPC分类号： H01J43/04

CPC分类号： H01J43/22 ,  H01J43/18 ,  H01J43/26

摘要： 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. The first support member is provided with a focusing electrode functioning to alter trajectories of the primary electrons, in order to guide the primary electrons to the inlet aperture. 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.

摘要翻译： 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。 第一支撑构件设置有用于改变初级电子的轨迹的聚焦电极，以便将一次电子引导到入口孔。 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且发射二次电子 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：US07492097B2

公开(公告)日：2009-02-17

申请号：US11080665

申请日：2005-03-16

申请人： Kimitsugu Nakamura ,  Yousuke Oohashi ,  Keiichi Ohishi ,  Masuo Ito

发明人： Kimitsugu Nakamura ,  Yousuke Oohashi ,  Keiichi Ohishi ,  Masuo Ito

IPC分类号： H01J43/04

CPC分类号： H01J43/22 ,  H01J43/18 ,  H01J43/26

摘要： 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 is comprised of 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.

摘要翻译： 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。 电子倍增部分包括至少第一倍频器的盒型和第二倍增电极，其具有反射型二次电子发射表面，该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且发射次级 电子到第一倍增电极所在的一侧。 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：US5736731A

公开(公告)日：1998-04-07

申请号：US684140

申请日：1996-07-19

申请人： Hiroyuki Kyushima ,  Takayuki Omura ,  Kimitsugu Nakamura ,  Suenori Kimura ,  Yousuke Oohashi ,  Masuo Ito

发明人： Hiroyuki Kyushima ,  Takayuki Omura ,  Kimitsugu Nakamura ,  Suenori Kimura ,  Yousuke Oohashi ,  Masuo Ito

IPC分类号： H01J43/20 ,  H01J43/04 ,  H01J43/18

CPC分类号： H01J43/04

摘要： In a photomultiplier tube, a second dynode Dy2 is located in confrontation with a first dynode Dy1 in an electron multiplication portion 6. The second dynode Dy2 is made of material that has a secondary electron emission gain which is substantially saturated with respect to an electric voltage applied thereto.

摘要翻译： 在光电倍增管中，第二倍增电极Dy2与电子倍增部分6中的第一倍增极Dy1对置。第二倍增电极Dy2由具有相对于电压基本饱和的二次电子发射增益的材料制成 应用于此。

公开(公告)号：US20060164007A1

公开(公告)日：2006-07-27

申请号：US11080665

申请日：2005-03-16

申请人： Kimitsugu Nakamura ,  Yousuke Oohashi ,  Keiichi Ohishi ,  Masuo Ito

发明人： Kimitsugu Nakamura ,  Yousuke Oohashi ,  Keiichi Ohishi ,  Masuo Ito

IPC分类号： H01J43/18

CPC分类号： H01J43/22 ,  H01J43/18 ,  H01J43/26

摘要： 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 is comprised of 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.

摘要翻译： 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。 电子倍增部分包括至少第一倍频器的盒型和第二倍增电极，其具有反射型二次电子发射表面，该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且发射次级 电子到第一倍增电极所在的一侧。 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。