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公开(公告)号：US20050174052A1
公开(公告)日：2005-08-11
申请号：US10504979
申请日：2003-02-24
Applicant: Minoru Niigaki , Shoichi Uchiyama , Hirofumi Kan
Inventor： Minoru Niigaki , Shoichi Uchiyama , Hirofumi Kan
CPC classification number: H01J31/50 , H01J1/34 , H01J31/506 , H01J2201/3421
Abstract: A transmission type photocathode of the present invention comprises a light absorption layer 1 formed of diamond or a material containing diamond as a main component, a supporting frame 21 for reinforcing the mechanical strength of the light absorption layer 1, a first electrode 31 provided at the plane of incidence of the light absorption layer 1, and a second electrode 32 provided at the plane of emission of the light absorption layer 1. A voltage is applied between the plane of incidence and plane of emission of the light absorption layer 1 to form an electric field in the light absorption layer 1. When light to be detected is made incident and photoelectrons occur in the light absorption layer 1, the photoelectrons are accelerated to the plane of emission by the electric field formed in the light absorption layer 1, and emitted to the outside of the transmission type photocathode.
Abstract translation: 本发明的透射型光电阴极包括由金刚石或含有金刚石作为主要成分的材料形成的光吸收层1，用于增强光吸收层1的机械强度的支撑框架21，设置在该光吸收层1上的第一电极31 光吸收层1的入射面和设置在光吸收层1的发射平面上的第二电极32。 在光吸收层1的入射平面和发光面之间施加电压，以在光吸收层1中形成电场。 当被检测的光入射并且在光吸收层1中出现光电子时，光电子通过形成在光吸收层1中的电场而被加速到发射平面，并且发射到透射型光电阴极的外部。
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12.发明申请Polycrystal diamond thin film and photocathode and electron tube using the same 有权多晶金刚石薄膜和光电阴极和电子管使用相同公开(公告)号：US20030001498A1
公开(公告)日：2003-01-02
申请号：US10223378
申请日：2002-08-20
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Minoru Niigaki , Shoichi Uchiyama , Hirofumi Kan
IPC: H01J040/06 , B32B009/00
CPC classification number: H01J43/08 , H01J1/34 , H01J40/06 , H01J2201/3421 , H01J2231/50021 , Y10T428/30
Abstract: In the polycrystal diamond thin film in accordance with the present invention, the average particle size is at least 1.5 nullm and, in a Raman spectrum obtained by Raman spectroscopy, a peak intensity near a wave number of 1580 cmnull1 has a ratio of 0.2 or less with respect to a peak intensity near a wave number of 1335 cmnull1. The photocathode and electron tube in accordance with the present invention comprise the polycrystal diamond thin film as a light-absorbing layer.
Abstract translation: 在本发明的多晶金刚石薄膜中，平均粒径为1.5μm以上，通过拉曼光谱法得到的拉曼光谱中，波数为1580cm -1附近的峰强度的比例为0.2 或更小，相对于波数为1335cm -1附近的峰值强度。 根据本发明的光电阴极和电子管包括多晶金刚石薄膜作为光吸收层。
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公开(公告)号：US5557167A
公开(公告)日：1996-09-17
申请号：US281850
申请日：1994-07-28
Applicant: Hyo-Sup Kim , John F. Krueger , Alexander L. Vinson
Inventor： Hyo-Sup Kim , John F. Krueger , Alexander L. Vinson
CPC classification number: H01J1/34 , H01J2201/3421
Abstract: A photocathode which is responsive to ultraviolet light to release photoelectrons includes a supportive window layer of sapphire and a single-crystal active layer of AlGaN. Interposed between the window layer and the active layer is an interface layer which insures a low population density of crystalline defects at the interface of the interface layer with the active layer and in the active layer itself. Consequently, the photocathode is an effective emitter of photoelectrons in the transmission mode.
Abstract translation: 响应于紫外光以释放光电子的光电阴极包括蓝宝石的支撑窗口层和AlGaN的单晶有源层。 在窗口层和有源层之间插入界面层，其确保界面层与有源层和活性层本身界面处的结晶缺陷的低群体密度。 因此，光电阴极是透射模式下光电子的有效发射体。
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公开(公告)号：US09837238B2
公开(公告)日：2017-12-05
申请号：US15249197
申请日：2016-08-26
Applicant: National Security Technologies, LLC
Inventor： Yekaterina Opachich , Andrew MacPhee
CPC classification number: H01J1/34 , G01T1/28 , H01J2201/3421
Abstract: A photocathode designs that leverage the grazing incidence geometry yield improvements through the introduction of recessed structures, such as cones, pyramids, pillars or cavities to the photocathode substrate surface. Improvements in yield of up to 20 times have been shown to occur in grazing incidence geometry disclosed herein due to a larger path length of the X-ray photons which better matches the secondary electron escape depth within the photocathode material. A photocathode includes a substrate having a first side and a second side, the first side configured to receive x-ray energy and the second side opposing the first side. A structured surface is associated with the second side of the substrate such that the structured surface includes a plurality of recesses from the second side of the substrate into the substrate.
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15.发明授权公开(公告)号：US07652425B2
公开(公告)日：2010-01-26
申请号：US10504979
申请日：2003-02-24
Applicant: Minoru Niigaki , Shoichi Uchiyama , Hirofumi Kan
Inventor： Minoru Niigaki , Shoichi Uchiyama , Hirofumi Kan
CPC classification number: H01J31/50 , H01J1/34 , H01J31/506 , H01J2201/3421
Abstract: A transmission type photocathode includes a light absorption layer 1 formed of diamond or a material containing diamond as a main component, a supporting frame 21 for reinforcing the mechanical strength of the light absorption layer 1, a first electrode 31 provided at the plane of incidence of the light absorption layer 1, and a second electrode 32 provided at the plane of emission of the light absorption layer 1. A voltage is applied between the plane of incidence and plane of emission of the light absorption layer 1 to form an electric field in the light absorption layer 1. When light to be detected is made incident and photoelectrons occur in the light absorption layer 1, the photoelectrons are accelerated to the plane of emission by the electric field formed in the light absorption layer 1, and emitted to the outside of the transmission type photocathode.
Abstract translation: 透射型光电阴极包括由金刚石形成的光吸收层1或含有金刚石作为主要成分的材料，用于增强光吸收层1的机械强度的支撑框架21，设置在该入射平面上的第一电极31 光吸收层1和设置在光吸收层1的发射平面处的第二电极32.在光吸收层1的入射平面和发射平面之间施加电压，以在光吸收层1中形成电场。 光吸收层1.当在光吸收层1中发生待检测的光入射光电子时，光电子通过形成在光吸收层1中的电场而被加速到发射平面，并且发射到 透射型光电阴极。
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Patent Agency Ranking
公开(公告)号：US5982094A
公开(公告)日：1999-11-09
申请号：US931459
申请日：1997-09-17
Applicant: Minoru Niigaki , Toru Hirohata , Hirofumi Kan , Masami Yamada
Inventor： Minoru Niigaki , Toru Hirohata , Hirofumi Kan , Masami Yamada
CPC classification number: H01J40/16 , H01J1/34 , H01J43/08 , H01J2201/3421 , H01J2231/50
Abstract: A photocathode includes a first layer of polycrystalline diamond or a material mainly composed of polycrystalline diamond. The first layer of polycrystalline diamond may be terminated with hydrogen, or oxygen, and a second layer of an alkali metal or compound of an alkali metal, may be provided on the first layer of polycrystalline diamond whose surface is terminated with hydrogen or oxygen. The photocathode can be use for both reflection and transmission electron tubes and can yield a quantum efficiency higher than that in a monocrystal diamond thin film.
Abstract translation: 光电阴极包括第一层多晶金刚石或主要由多晶金刚石构成的材料。 第一层多晶金刚石可以用氢或氧终止，并且第二层碱金属或碱金属化合物可以在其表面用氢或氧终止的第一多晶金刚石层上提供。 光电阴极可以用于反射和透射电子管，并且可以产生比单晶金刚石薄膜中的量子效率更高的量子效率。
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公开(公告)号：US5977705A
公开(公告)日：1999-11-02
申请号：US639561
申请日：1996-04-29
Applicant: Timothy W. Sinor , Joseph P. Estrera , Keith T. Passmore
Inventor： Timothy W. Sinor , Joseph P. Estrera , Keith T. Passmore
CPC classification number: H01J9/12 , H01J1/34 , H01J29/38 , H01J2201/3421 , H01J2201/3423
Abstract: A novel photocathode and image intensifier tube include an active layer comprised substantially of amorphic diamond-like carbon, diamond, or a combination of both. The photocathode has a face plate coupled to an active layer. The active layer is operable to emit electrons in response to photons striking the face plate.
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18.发明公开POLYCRYSTALLINE DIAMOND THIN FILM, PHOTOCATHODE AND ELECTRON TUBE USING IT 审中-公开DÜNNERPOLYKRISTALLINER DIAMAND-FILM，照相机DIESE VERWENDENDEELEKTRONENRÖHRE
公开(公告)号：EP1260616A1
公开(公告)日：2002-11-27
申请号：EP01906198.5
申请日：2001-02-22
Applicant: Hamamatsu Photonics K.K.
Inventor： NIIGAKI, Minoru c/o Hamamatsu Photonics K.K. , UCHIYAMA, Shoichi c/o Hamamatsu Photonics K.K. , KAN, Hirofumi c/o Hamamatsu Photonics K.K.
CPC classification number: H01J43/08 , H01J1/34 , H01J40/06 , H01J2201/3421 , H01J2231/50021 , Y10T428/30
Abstract: In the polycrystal diamond thin film in accordance with the present invention, the average particle size is at least 1.5 µm and, in a Raman spectrum obtained by Raman spectroscopy, a peak intensity near a wave number of 1580 cm -1 has a ratio of 0.2 or less with respect to a peak intensity near a wave number of 1335 cm -1 . The photocathode 2 and electron tube 1 in accordance with the present invention comprise the polycrystal diamond thin film as a light-absorbing layer 22.
Abstract translation: 在本发明的多晶金刚石薄膜中，平均粒径为1.5μm以上，在通过拉曼光谱法求出的拉曼光谱中，波数为1580cm -1附近的峰强度为 相对于波数为1335cm -1附近的峰值强度为0.2以下。 根据本发明的光电阴极2和电子管1包含多晶金刚石薄膜作为光吸收层22。
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19.发明公开Photocathode and electron tube with the same 失效Photokathode und solche Kathode enthaltendeElektronenröhre
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
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。
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公开(公告)号：JP4166990B2
公开(公告)日：2008-10-15
申请号：JP2002046862
申请日：2002-02-22
Applicant: 浜松ホトニクス株式会社
CPC classification number: H01J31/50 , H01J1/34 , H01J31/506 , H01J2201/3421
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