公开(公告)号：EP1098347A1

公开(公告)日：2001-05-09

申请号：EP98929679.3

申请日：1998-06-25

Applicant: Hamamatsu Photonics K.K.

Inventor： NIHASHI, Tokuaki

IPC: H01J1/34 ,  H01J29/38 ,  H01J31/50 ,  H01J40/06 ,  G01J1/02

CPC classification number: H01J1/34 ,  H01J43/08 ,  H01J2201/3423 ,  H01J2231/50021

Abstract: A photocathode having a UV glass substrate (3) and a laminate (10) composed of a SiO 2 layer (15), a GaAlN layer (17a), a Group III-V nitride semiconductor layer (18) and an AlN buffer layer (17) provided on the UV glass substrate (3) in succession. The UV glass substrate (3), which absorbs infrared rays, can be heat treated at a high speed by photoheating. Further, the UV glass substrate (3), which is transparent to ultraviolet rays, permits ultraviolet rays to be introduced into the Group III-V nitride semiconductor layer (18) where photoelectric conversion occurs.

Abstract translation: 具有UV玻璃基板（3）和由SiO 2层（15），GaAlN层（17a），III-V族氮化物半导体层（18）和AlN缓冲层（17）构成的层压体（10）的光电阴极 ）连续设置在UV玻璃基板（3）上。 吸收红外线的紫外线玻璃基板（3）可以通过光加热而高速热处理。 此外，紫外线透明的紫外线玻璃基板（3）能够将紫外线导入发生光电转换的III-V族氮化物半导体层（18）中。

公开(公告)号：EP0829898A1

公开(公告)日：1998-03-18

申请号：EP97307215.0

申请日：1997-09-17

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Niigaki, Minoru ,  Hirohata, Toru ,  Kan, Hirofumi ,  Yamada, Masami

IPC: H01J1/34 ,  H01J40/16

CPC classification number: H01J40/16 ,  H01J1/34 ,  H01J43/08 ,  H01J2201/3421 ,  H01J2231/50

Abstract: The present invention relates to a photocathode which is applicable to both reflection and transmission types and can yield a quantum efficiency higher than that in a monocrystal diamond thin film, and an electron tube equipped with the same. The photocathode according to the present invention comprises, at least, a first layer made of polycrystalline diamond or a material mainly composed of polycrystalline diamond. In a modified example of the photocathode, the surface of the first layer is terminated with hydrogen or oxygen. Further, a second layer comprising an alkali metal or its compound may be provided on the polycrystalline diamond thin film whose surface is terminated with hydrogen or oxygen.

Abstract translation: 本发明涉及一种适用于反射和透射型的光电阴极，并且可以产生比单晶金刚石薄膜中的量子效率更高的光电阴极以及配备该光电阴极的电子管。 根据本发明的光电阴极至少包括由多晶金刚石制成的第一层或主要由多晶金刚石构成的材料。 在光电阴极的改进实例中，第一层的表面用氢或氧终止。 此外，可以在其表面用氢或氧终止的多晶金刚石薄膜上提供包含碱金属或其化合物的第二层。

公开(公告)号：EP0437242B1

公开(公告)日：1996-01-03

申请号：EP91100196.4

申请日：1991-01-08

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Ohishi, Keiichi, c/o Hamamatsu Photonics K.K. ,  Suzuki, Hideaki, c/o Hamamatsu Photonics K.K. ,  Watanabe, Hiroyuki, c/o Hamamatsu Photonics K.K. ,  Takeuchi, Junichi, c/o Hamamatsu Photonics K.K.

IPC: H01J9/12

CPC classification number: H01J9/12 ,  H01J43/08 ,  H01J2201/3426

公开(公告)号：US20230187161A1

公开(公告)日：2023-06-15

申请号：US17923949

申请日：2021-04-15

Applicant: NATIONAL UNIVERSITY CORPORATION SHIZUOKA UNIVERSITY ,  HAMAMATSU PHOTONICS K.K.

Inventor： Atsushi NAKAMURA ,  Yusuke NODA

IPC: H01J1/34 ,  H01J9/12 ,  H01J43/08

CPC classification number: H01J1/34 ,  H01J9/12 ,  H01J43/08

Abstract: A photocathode 4 includes an optically transparent conductive layer provided between a translucent substrate and a photoelectric conversion layer. The optically transparent conductive layer is formed of a constituent material including carbon. A Raman spectrum of the constituent material has a peak of a band, a peak of a band, a peak of a band, and a peak of a band.

公开(公告)号：US09478402B2

公开(公告)日：2016-10-25

申请号：US14198175

申请日：2014-03-05

Applicant: KLA-Tencor Corporation

Inventor： Yung-Ho Chuang ,  David L. Brown ,  John Fielden

IPC: H01L31/11 ,  H01L31/167 ,  H01J40/06 ,  H01L31/103 ,  H01J43/08

CPC classification number: H01J40/06 ,  H01J43/08 ,  H01L31/02161 ,  H01L31/103

Abstract: A photomultiplier tube includes a semiconductor photocathode and a photodiode. Notably, the photodiode includes a p-doped semiconductor layer, an n-doped semiconductor layer formed on a first surface of the p-doped semiconductor layer to form a diode, and a pure boron layer formed on a second surface of the p-doped semiconductor layer. A gap between the semiconductor photocathode and the photodiode may be less than about 1 mm or less than about 500 μm. The semiconductor photocathode may include gallium nitride, e.g. one or more p-doped gallium nitride layers. In other embodiments, the semiconductor photocathode may include silicon. This semiconductor photocathode can further include a pure boron coating on at least one surface.

Abstract translation: 光电倍增管包括半导体光电阴极和光电二极管。 值得注意的是，光电二极管包括p掺杂半导体层，形成在p掺杂半导体层的第一表面上以形成二极管的n掺杂半导体层，以及在p掺杂的第二表面上形成的纯硼层 半导体层。 半导体光电阴极和光电二极管之间的间隙可以小于约1mm或小于约500μm。 半导体光电阴极可以包括例如氮化镓。 一个或多个p掺杂氮化镓层。 在其他实施例中，半导体光电阴极可以包括硅。 该半导体光电阴极还可以在至少一个表面上包括纯硼涂层。

公开(公告)号：US09147559B2

公开(公告)日：2015-09-29

申请号：US14136236

申请日：2013-12-20

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Hiroyuki Kyushima ,  Hideki Shimoi ,  Akihiro Kageyama ,  Keisuke Inoue ,  Masuo Ito

IPC: H01J43/04 ,  H01J43/24

CPC classification number: H01J43/08 ,  H01J9/26 ,  H01J43/04 ,  H01J43/24

Abstract: The present invention relates to a photomultiplier having a structure for making it possible to easily realize high detection accuracy and fine processing, and a method of manufacturing the same. The photomultiplier comprises an enclosure having an inside kept in a vacuum state, whereas a photocathode emitting electrons in response to incident light, an electron multiplier section multiplying in a cascading manner the electron emitted from the photocathode, and an anode for taking out a secondary electron generated in the electron multiplier section are arranged in the enclosure. A part of the enclosure is constructed by a glass substrate having a flat part, whereas each of the electron multiplier section and anode is two-dimensionally arranged on the flat part in the glass substrate.

Abstract translation: 本发明涉及具有能够容易地实现高检测精度和精细处理的结构的光电倍增管及其制造方法。 光电倍增管包括具有内部保持在真空状态的外壳，而响应于入射光发射电子的光电阴极，电子倍增器部分以级联方式从光电阴极发射的电子和用于取出二次电子的阳极 在电子倍增器部分中产生的电极被布置在外壳中。 外壳的一部分由具有平坦部分的玻璃基板构成，而电子倍增器部分和阳极中的每一个二维地布置在玻璃基板的平坦部分上。

公开(公告)号：US20140348293A1

公开(公告)日：2014-11-27

申请号：US14082658

申请日：2013-11-18

Applicant: Rapiscan Systems, Inc.

Inventor： Edward James Morton

IPC: H01J43/30 ,  G01V5/00 ,  H01J43/18 ,  G01T1/208

CPC classification number: H01J43/30 ,  G01T1/16 ,  G01T1/167 ,  G01T1/208 ,  G01T3/06 ,  G01V5/0025 ,  G01V5/0091 ,  H01J40/04 ,  H01J43/08 ,  H01J43/18

Abstract: The invention provides a switchable photomultiplier switchable between a detecting state and a non-detecting state including a cathode upon which incident radiation is arranged to impinge. The photomultiplier also includes a series of dynodes arranged to amplify a current created at the cathode upon detection of photoradiation. The invention also provides a detection system arranged to detect radiation-emitting material in an object. The system includes a detector switchable between a detecting state in which the detector is arranged to detect radiation and a non-detecting state in which the detector is arranged to not detect radiation. The system further includes a controller arranged to control switching of the detector between the states such that the detector is switched to the non-detecting state whilst an external radiation source is irradiating the object.

Abstract translation: 本发明提供了一种可切换的光电倍增器，其可在检测状态和非检测状态之间切换，包括入射辐射被布置成入射的阴极。 光电倍增管还包括一系列倍增电极，其布置成在检测到光辐射时放大阴极产生的电流。 本发明还提供了一种检测系统，用于检测物体中的辐射发射材料。 该系统包括可在检测器被布置成检测辐射的检测状态和其中检测器被布置为不检测辐射的非检测状态之间切换的检测器。 该系统还包括控制器，其布置成控制检测器在状态之间的切换，使得当外部辐射源照射物体时检测器切换到非检测状态。

公开(公告)号：US08242694B2

公开(公告)日：2012-08-14

申请号：US13113604

申请日：2011-05-23

Applicant: Hiroyuki Kyushima ,  Hideki Shimoi ,  Akihiro Kageyama ,  Keisuke Inoue ,  Masuo Ito

Inventor： Hiroyuki Kyushima ,  Hideki Shimoi ,  Akihiro Kageyama ,  Keisuke Inoue ,  Masuo Ito

IPC: H01J43/20 ,  H01J43/26

CPC classification number: H01J43/08 ,  H01J9/26 ,  H01J43/04 ,  H01J43/24

Abstract: The present invention relates to a photomultiplier having a structure for making it possible to easily realize high detection accuracy and fine processing, and a method of manufacturing the same. The photomultiplier comprises an enclosure having an inside kept in a vacuum state, whereas a photocathode emitting electrons in response to incident light, an electron multiplier section multiplying in a cascading manner the electron emitted from the photocathode, and an anode for taking out a secondary electron generated in the electron multiplier section are arranged in the enclosure. A part of the enclosure is constructed by a glass substrate having a flat part, whereas each of the electron multiplier section and anode is two-dimensionally arranged on the flat part in the glass substrate.

Abstract translation: 本发明涉及具有能够容易地实现高检测精度和精细处理的结构的光电倍增管及其制造方法。 光电倍增管包括具有内部保持在真空状态的外壳，而响应于入射光发射电子的光电阴极，电子倍增器部分以级联方式从光电阴极发射的电子和用于取出二次电子的阳极 在电子倍增器部分中产生的电极被布置在外壳中。 外壳的一部分由具有平坦部分的玻璃基板构成，而电子倍增器部分和阳极中的每一个二维地布置在玻璃基板的平坦部分上。

公开(公告)号：US07855510B2

公开(公告)日：2010-12-21

申请号：US10585355

申请日：2004-12-24

Applicant: Takayuki Ohmura ,  Suenori Kimura ,  Masuo Ito

Inventor： Takayuki Ohmura ,  Suenori Kimura ,  Masuo Ito

IPC: H01J43/18

CPC classification number: H01J43/08

Abstract: A photomultiplier tube includes: a cathode, a plurality of dynodes, and an electron lens forming electrode. The cathode emits electrons in response to incident light. The plurality of dynodes multiplies electrons emitted from the cathode. The electron lens forming the electrode is disposed in a prescribed position in relation to an edge of a first dynode positioned in a first stage from the cathode and an edge of a second dynode positioned in a second stage from the cathode, and smoothes an equipotential surface in a space between the first dynode and the second dynode along a longitudinal direction of the first dynode. This structure improves time resolution in response to incident light.

Abstract translation: 光电倍增管包括：阴极，多个倍增电极和电子透镜形成电极。 阴极响应于入射光而发射电子。 多个倍增电极将从阴极发射的电子相乘。 形成电极的电子透镜相对于从阴极位于第一级的第一倍增电极的边缘和从阴极定位在第二级中的第二倍增电极的边缘相对于预定位置设置，并平滑等电位面 在第一倍增电极和第二倍增电极之间的空间中沿着第一倍增极的纵向方向。 该结构提高响应于入射光的时间分辨率。

公开(公告)号：US07602122B2

公开(公告)日：2009-10-13

申请号：US10586498

申请日：2005-02-16

Applicant: Hiroyuki Kyushima ,  Hideki Shimoi ,  Akihiro Kageyama ,  Keisuke Inoue ,  Masuo Ito

Inventor： Hiroyuki Kyushima ,  Hideki Shimoi ,  Akihiro Kageyama ,  Keisuke Inoue ,  Masuo Ito

IPC: H01J43/04

CPC classification number: H01J43/08 ,  H01J9/26 ,  H01J43/04 ,  H01J43/24

Abstract: The present invention relates to a photomultiplier of a fine structure that realizes a high multiplier efficiency. The photomultiplier comprises an outer casing whose interior is maintained at vacuum, and, in the outer case, a photocathode that emits photoelectrons in response to incident light, an electron multiplier section that performs cascade multiplication of the photoelectrons emitted from the photocathode, and an anode for taking out secondary electrons, which are generated at the electron multiplier section, are arranged. In particular, groove portions for performing cascade multiplication of electrons from the photocathode are provided in the electron multiplier section, and on the respective surfaces of each pair of wall portions that define the groove portions are provided with one or more protrusions each having a secondary electron emitting surface formed on the surface thereof.

Abstract translation: 本发明涉及实现高乘法器效率的精细结构的光电倍增管。 光电倍增管包括内壳保持真空的外壳，在外壳中，响应于入射光发射光电子的光电阴极，执行从光电阴极发射的光电子的级联倍增的电子倍增器部分和阳极 用于取出在电子倍增器部分产生的二次电子。 具体而言，在电子倍增部中设置用于进行电子从光电阴极的级联倍增的槽部，在形成有槽部的各对壁部的各表面设置有一个以上的具有二次电子 在其表面上形成的发光表面。