公开(公告)号：US10388506B2

公开(公告)日：2019-08-20

申请号：US15321563

申请日：2015-12-04

Applicant: Korea Basic Science Institute

Inventor： Mo Yang ,  Seung Yong Kim ,  Hyun Sik Kim ,  Wan Seop Jeong

IPC: H01J49/40 ,  H01J49/08 ,  H01J49/14 ,  H01J43/10 ,  H01J43/24

Abstract: Provided is a time-of-flight mass spectrometer including: an ionization part receiving electron beams to thereby emit ions; a cold electron supply part injecting the electron beams to the ionization part; an ion detection part detecting the ions emitted from the ionization part; and an ion separation part connecting the ionization part and the ion detection part, wherein the cold electron supply part includes a microchannel plate receiving ultraviolet rays to thereby emit the electron beams, the ions emitted from the ionization part pass through the ion separation part to thereby reach the ion detection part, and the ion separation part has a straight tube shape.

公开(公告)号：US20180144914A1

公开(公告)日：2018-05-24

申请号：US15858600

申请日：2017-12-29

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Motohiro SUYAMA ,  Hiroshi KOBAYASHI ,  Shinya HATTORI

IPC: H01J43/10 ,  B32B3/00 ,  B32B9/00 ,  B32B9/04 ,  C23C14/00 ,  H01J9/12 ,  H01J43/16 ,  H01J43/24

CPC classification number: H01J43/10 ,  B32B3/00 ,  B32B9/005 ,  B32B9/04 ,  B32B2457/20 ,  C23C14/00 ,  C23C16/45555 ,  H01J9/125 ,  H01J43/16 ,  H01J43/24

Abstract: A method of manufacturing an electron multiplier body, the method includes a step of preparing a first plate-like member having a surface and a back surface and a pair of second plate-like members, a step of forming, in the first plate-like member, a hole portion reaching from the front surface to the back surface, a step of constituting a laminated body by laminating the first and second plate-like members on each other so that the first plate-like member is interposed between the pair of second plate-like members to form a channel defined by the hole portion in the laminated body, a step of integrating the laminated body, a step of constituting a main body portion by cutting the integrated laminated body so that the channel is open, and a step of forming a resistive layer and a secondary electron multiplication layer on an inner surface of the channel.

公开(公告)号：US09824844B2

公开(公告)日：2017-11-21

申请号：US15029336

申请日：2014-08-08

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Takaaki Nagata ,  Yasumasa Hamana ,  Kimitsugu Nakamura

IPC: H01J1/34 ,  H01J1/32 ,  H01J40/06 ,  H01J43/08 ,  H01J43/10

CPC classification number: H01J1/34 ,  H01J1/32 ,  H01J40/06 ,  H01J43/08 ,  H01J43/10

Abstract: A transmission mode photocathode comprises: an optically transparent substrate having an outside face to which light is incident, and an inside face from which the light incident to the outside face side is output; a photoelectric conversion layer disposed on the inside face side of the optically transparent substrate and configured to convert the light output from the inside face into a photoelectron or photoelectrons; and an optically-transparent electroconductive layer comprising graphene, and disposed between the optically transparent substrate and the photoelectric conversion layer.

公开(公告)号：US09543130B2

公开(公告)日：2017-01-10

申请号：US14934107

申请日：2015-11-05

Applicant: KLA-Tencor Corporation

Inventor： Derek Cameron Mackay

IPC: H01J43/18 ,  H01J43/10 ,  H01J43/08

CPC classification number: H01J43/10 ,  H01J43/08 ,  H01J43/18

Abstract: An internal portion of a photomultiplier tube (PMT) having a reflective photocathode array, and a method for manufacturing the same, are provided. The internal portion of the PMT comprises the reflective photocathode array and at least one dynode structure corresponding to the array of reflective photocathodes. Each reflective photocathode receives light and from the light, generates photoelectrons which then travel towards the at least one dynode structure. Upon the photoelectrons making contact with the at least one dynode structure, the photoelectrons are multiplied.

Abstract translation: 提供了具有反射光电阴极阵列的光电倍增管（PMT）的内部部分及其制造方法。 PMT的内部部分包括反射光电阴极阵列和对应于反射光电阴极阵列的至少一个倍增极结构。 每个反射光电阴极接收光并且从光产生光电子，然后光电子朝向至少一个倍增电极结构行进。 当光电子与至少一个倍增极结构接触时，光电子被倍增。

公开(公告)号：US20150187551A1

公开(公告)日：2015-07-02

申请号：US14572926

申请日：2014-12-17

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tomohiro ISHIZU ,  Tetsuya FUJITA ,  Takahiro SUZUKI

IPC: H01J43/28 ,  H01J43/10

CPC classification number: H01J43/28

Abstract: A photomultiplier according to an embodiment of the present invention has a sealed container the interior of which is maintained in a vacuum state, and an electron multiplier unit housed in the sealed container, and the sealed container is partly constructed of ceramic side tubes, on the assumption that the photomultiplier is used under high-temperature, high-pressure environments. The photomultiplier further has a structure for fixing an installation position of the electron multiplier unit relative to the sealed container, for improvement in anti-vibration performance.

Abstract translation: 根据本发明的实施例的光电倍增管具有内部保持在真空状态的密封容器和容纳在密封容器中的电子倍增器单元，并且密封容器部分地由陶瓷侧管构成，在 假设光电倍增管在高温，高压环境下使用。 光电倍增管还具有用于固定电子倍增器单元相对于密封容器的安装位置的结构，以提高抗振性能。

公开(公告)号：US09035540B2

公开(公告)日：2015-05-19

申请号：US13805094

申请日：2011-06-17

Applicant: Gert Nuetzel ,  Pascal Lavoute ,  Richard B. Jackman

Inventor： Gert Nuetzel ,  Pascal Lavoute ,  Richard B. Jackman

IPC: H01J43/10 ,  G01T1/24 ,  H01J1/32 ,  H01J29/02 ,  H01J31/48 ,  H01J31/49 ,  H01J31/50 ,  H01J43/22 ,  H01J43/24 ,  H01J43/04 ,  B82Y15/00

CPC classification number: G01T1/247 ,  B82Y15/00 ,  H01J1/32 ,  H01J29/023 ,  H01J31/48 ,  H01J31/49 ,  H01J31/506 ,  H01J43/04 ,  H01J43/22 ,  H01J43/246 ,  H01J2231/5001 ,  H01J2231/50047

Abstract: A system for detecting electromagnetic radiation or an ion flow, including an input device for receiving the electronic radiation or the ion flow and emitting primary electrons in response, a multiplier of electrons in transmission, for receiving the primary electrons and emitting secondary electrons in response, and an output device for receiving the secondary electrons and emitting an output signal in response. The electron multiplier includes at least one nanocrystalline diamond layer doped with boron in a concentration of higher than 5·1019 cm−3.

Abstract translation: 一种用于检测电磁辐射或离子流的系统，包括用于接收电子辐射或离子流并响应于发射一次电子的输入装置，传输中的电子的乘数，用于接收一次电子并发出响应的二次电子， 以及输出装置，用于接收二次电子并响应于发射输出信号。 电子倍增器包括至少一个掺杂有浓度高于5×10 19 cm -3的硼的纳米晶体金刚石层。

公开(公告)号：US08410415B2

公开(公告)日：2013-04-02

申请号：US13279081

申请日：2011-10-21

Applicant: Megumi Nakamura ,  Yoshiro Shiokawa ,  Qiang Peng

Inventor： Megumi Nakamura ,  Yoshiro Shiokawa ,  Qiang Peng

IPC: H01J43/06 ,  H01J43/10 ,  H01J40/06

CPC classification number: H01J43/10 ,  H01J49/00

Abstract: The present disclosure provides an ion detector for improving the effect of electric field for pulling in an ion to be detected to a first-stage electrode of a secondary electron multiplier (SEM), and improving the effect of a stray light reduction. In one example embodiment, an ion detector includes a SEM, and a lead-in electrode for pulling in an ion to a first-stage electrode side of the SEM. At least one of the area of the lead-in electrode and a potential difference between the lead-in electrode and neighboring electrodes of the lead-in electrode, the neighboring electrode being an electrode not of the SEM, is set so that the light amount of internal-stray light generated inside the detector entering the first-stage electrode is not more than that of external-stray light generated outside the detector entering the first-stage electrode, when an ion is introduced into the detector.

Abstract translation: 本公开内容提供了一种离子检测器，用于改善用于将要检测的离子拉入二次电子倍增器（SEM）的第一级电极的电场效应，并提高杂散光减少的效果。 在一个示例性实施例中，离子检测器包括SEM和用于将离子拉入SEM的第一级电极侧的引入电极。 引入电极的区域中的至少一个和引入电极与引入电极的相邻电极之间的电位差设定为不是SEM的电极的相邻电极，使得光量 当离子被引入到检测器中时，进入第一级电极的检测器内部产生的内部杂散光不超过进入第一级电极的检测器外部产生的外部杂散光。

公开(公告)号：US06998778B2

公开(公告)日：2006-02-14

申请号：US11007243

申请日：2004-12-09

Applicant: Hiroyuki Kyushima ,  Akira Atsumi ,  Hideki Shimoi

Inventor： Hiroyuki Kyushima ,  Akira Atsumi ,  Hideki Shimoi

IPC: H01J43/04 ,  H01J43/10

CPC classification number: H01J31/507 ,  H01J43/045 ,  H01J43/22

Abstract: A dynode (8) constituting an electron multiplier or a photomultiplier is provided with eight rows of channels (15) each defined by an outer frame (16) and a partitioning part (17) of the dynode (8). In each channel (15), a plurality of electron multiplying holes (14) are arranged. In specified positions of the outer frame (16) and the partitioning part (17) of the dynode (8), glass receiving parts (21) wider than the outer frame (16) and the partitioning part (17) are provided integrally with the dynode (8). Glass parts (22) are bonded to all the glass receiving parts (21). The glass parts (22) are bonded by applying glass to the glass receiving parts (21) and hardening the glass and each have a generally dome-like convex shape. Each dynode (8) is formed after the dome-like glass part (22) is bonded to the glass receiving part (21).

Abstract translation: 构成电子倍增器或光电倍增管的倍增电极（8）设置有由排列（8）的外框架（16）和分隔部分（17）限定的8行通道（15）。 在每个通道（15）中，布置有多个电子倍增孔（14）。 在倍增极（8）的外框架（16）和分隔部分（17）的指定位置，与外框架（16）和分隔部分（17）相比较宽的玻璃容纳部件（21）与 倍增极（8）。 玻璃部件（22）与所有玻璃接收部件（21）接合。 玻璃部分（22）通过将玻璃施加到玻璃接收部分（21）并使玻璃硬化并且各自具有大致圆顶状的凸起形状而接合。 在圆顶状玻璃部件22接合到玻璃接收部件21之后形成多个倍增极8。

公开(公告)号：US5923120A

公开(公告)日：1999-07-13

申请号：US614000

申请日：1996-03-11

Applicant: Hideki Suzuki ,  Kuniyoshi Yamauchi ,  Atsushi Onoda ,  Masahiko Iguchi

Inventor： Hideki Suzuki ,  Kuniyoshi Yamauchi ,  Atsushi Onoda ,  Masahiko Iguchi

IPC: G01J1/00 ,  G01T1/20 ,  H01J1/32 ,  H01J31/50 ,  H01J43/10 ,  H01J43/12 ,  H01J43/24 ,  H01J43/28 ,  H01J43/04

CPC classification number: H01J43/246 ,  H01J31/507

Abstract: In the microchannel 50, a conductive film 52 is formed on an electron input surface of a dynode 51 where the plurality of channels are arranged. The conductive film is made of material that can transmit light that has originated photoelectrons and that has a refractive index lower than that of the dynode constituting material.

Abstract translation: 在微通道50中，在布置多个通道的倍增极51的电子输入面上形成导电膜52。 该导电膜由能够透过已经产生光电子且折射率低于倍增极组成材料的折射率的材料制成。

公开(公告)号：US5917281A

公开(公告)日：1999-06-29

申请号：US954961

申请日：1997-10-21

Applicant: Hideki Shimoi ,  Hiroyuki Kyushima

Inventor： Hideki Shimoi ,  Hiroyuki Kyushima

IPC: H01J1/32 ,  H01J43/06 ,  H01J43/10 ,  H01J43/12 ,  H01J43/22 ,  H01J43/18

CPC classification number: H01J43/06 ,  H01J43/22

Abstract: According to the photomultiplier tube, the dynode unit 10 is constructed from a plurality of stages of dynodes 11 laminated one on another for multiplying incident electrons in a cascade manner through each of a plurality of channels. The anode unit 13 has a plurality of anodes 24 which define a plurality of electron passage gaps 14 each for transmitting the electrons emitted from the dynode unit 10 at a corresponding channel. The inverting dynode plate 15 is provided with a plurality of electron incident strips 17 each for receiving electrons having passed through a corresponding electron passage gap 14 in the anode unit 13, multiplying the electrons, and guiding the electrons back to the corresponding anode 24. The electron incident strip 17 is designed to have: the main surface 18a confronting the electron passage gap 14; and the rising surface 18c rising toward the anode unit 13 from the edge 18b of the main surface 18a which is located at a position confronting the electron passage gap 14 in the anode unit 13.

Abstract translation: 根据光电倍增管，倍增电极单元10由层叠在多个阶段的倍增电极11构成，用于通过多个通道中的每一个以级联方式对入射电子进行倍增。 阳极单元13具有多个阳极24，其限定多个电子通道间隙14，每个电子通道间隙14用于在相应的通道处传输从倍增极单元10发射的电子。 反相倍增极板15设置有多个电子入射条17，每个电子入射条17用于接收通过阳极单元13中的相应电子通道间隙14的电子，乘以电子，并将电子引导回相应的阳极24。 电子入射条17被设计为具有面对电子通道间隙14的主表面18a; 并且上升面18c从主面18a的位于与阳极单元13的电子通过间隙14相对的位置的边缘18b向阳极单元13上升。