-
-
公开(公告)号:US2157585A
公开(公告)日:1939-05-09
申请号:US9256636
申请日:1936-07-25
Applicant: RCA CORP
Inventor: ZWORYKIN VLADIMIR K , LOUIS MALTER
IPC: H01J43/08
CPC classification number: H01J43/08
-
-
-
-
公开(公告)号:JP2005197112A
公开(公告)日:2005-07-21
申请号:JP2004003037
申请日:2004-01-08
Applicant: Hamamatsu Photonics Kk , 浜松ホトニクス株式会社
Inventor: OMURA TAKAYUKI , KIMURA SUENORI , ITO MASUYASU
CPC classification number: H01J43/08
Abstract: PROBLEM TO BE SOLVED: To provide a photomultiplier tube capable of improving time resolution against incident light.
SOLUTION: The photomutiplier tube is provided with a cathode 3 emitting electron by the incident light, a plurality of steps of dynodes 107 multiplying electron emitted from the cathode 3, and an electronic lens forming electrode 115 arranged at a given position against an edge part of a first dynode 107a located at the first step from the cathode 3 as well as an edge part of a second dynode 107b located at the second step from the cathode 3 and flattening an equipotential surface in a space between the first dynode 107a and the second dynode 107b in a length direction of the first dynode 107a.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题:提供能够提高对入射光的时间分辨率的光电倍增管。 解决方案:光电管设置有通过入射光发射电子的阴极3,将从阴极3发射的电子与倍增电极107相乘的多个步骤和布置在给定位置的电子透镜形成电极115相对于 第一倍增极107a的位于第一阶段的阴极3的边缘部分以及位于距离阴极3的第二阶段的第二倍增电极107b的边缘部分,并在第一倍增极107a与第二倍增极107a之间的空间中使等电位面平坦化 第二倍增极107b在第一倍增电极107a的长度方向上。 版权所有(C)2005,JPO&NCIPI
-
公开(公告)号:JP2004165014A
公开(公告)日:2004-06-10
申请号:JP2002329750
申请日:2002-11-13
Applicant: Hamamatsu Photonics Kk , 浜松ホトニクス株式会社
Inventor: NEGI YASUHARU , EGAWA YASUYUKI , HIROHATA TORU , ARAGAKI MINORU
Abstract: PROBLEM TO BE SOLVED: To provide a photo cathode allowing a photo cathode plate to be surely held to a light transmission member with high workability.
SOLUTION: In this photo cathode 1, claw parts 16 of a holding member 7 fixed to the light transmission plate 3 is pressed against the undersurface 12b of a support plate 12 to catch the photo cathode plate 2 with the transmission plate 3 and the support plate 12. Thereby, since the support plate 12 is pressed by the cathode plate 2, the cathode plate 2 is pressed against the transmission plate 3 by the support plate 12. Accordingly, the cathode plate 2 can surely be held to the transmission plate 3, and assembly workability is high because the structure is simple.
COPYRIGHT: (C)2004,JPO-
公开(公告)号:US11688592B2
公开(公告)日:2023-06-27
申请号:US17609519
申请日:2020-05-12
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor: Terunori Kawai , Yoshitaka Torii , Masami Shibayama , Hiroyuki Watanabe , Shinichi Yamashita
Abstract: A photocathode including a substrate, a photoelectric conversion layer provided on the substrate and generating photoelectrons in response to incidence of light, and an underlayer provided between the substrate and the photoelectric conversion layer and containing beryllium, in which the underlayer has a first underlayer containing a nitride of beryllium.
-
公开(公告)号:US20150371835A1
公开(公告)日:2015-12-24
申请号:US14841886
申请日:2015-09-01
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor: Hiroyuki KYUSHIMA , Hideki SHIMOI , Akihiro KAGEYAMA , Keisuke INOUE , Masuo ITO
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:US08735833B2
公开(公告)日:2014-05-27
申请号:US13775253
申请日:2013-02-25
Applicant: Rapiscan System, Inc.
Inventor: Edward James Morton
IPC: G01T1/161
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 while 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,其被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对象时,检测器切换到非检测状态。
-
-
-
-
-
-
-
-
-