JPS55148358A - Photomultiplier tube - Google Patents

Photomultiplier tube

Info

Publication number
JPS55148358A
JPS55148358A JP5662379A JP5662379A JPS55148358A JP S55148358 A JPS55148358 A JP S55148358A JP 5662379 A JP5662379 A JP 5662379A JP 5662379 A JP5662379 A JP 5662379A JP S55148358 A JPS55148358 A JP S55148358A
Authority
JP
Japan
Prior art keywords
stage diode
electron
photocathode
enters
point
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP5662379A
Other languages
Japanese (ja)
Other versions
JPS6036060B2 (en
Inventor
Hideki Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hamamatsu TV Co Ltd
Original Assignee
Hamamatsu TV Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hamamatsu TV Co Ltd filed Critical Hamamatsu TV Co Ltd
Priority to JP5662379A priority Critical patent/JPS6036060B2/en
Publication of JPS55148358A publication Critical patent/JPS55148358A/en
Publication of JPS6036060B2 publication Critical patent/JPS6036060B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/04—Electron multipliers
    • H01J43/06—Electrode arrangements
    • H01J43/18—Electrode arrangements using essentially more than one dynode
    • H01J43/20—Dynodes consisting of sheet material, e.g. plane, bent

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Abstract

PURPOSE:To equalize photoelectric conversion efficient in collector by providing the first stage diode consisting of a curved plate having a large curvature radius for the portion facing a photocathode and a small curvature radius for the portion facing the second stage diode. CONSTITUTION:The first stage diode 1 is formed by combining an arc whose central angle is 60 deg. with arc whose central angle is 90 deg. in such a way as to inscribe at a radius as much as 0.4 times that of the arc whose central angle is 60 deg.. The electron emitted from the left end 31 of the photocathode 3 enters the point 41 close to the third stage diode 6 of the first stage diode 4, the electron emitted from the center 32 enters the center 42, and the electron from the right end 33 enters into the point 43 close to the photocathode, from which secondary electron is emitted. Such a secondary electron emits with an initial energy distribution of several eV or less from each point of the first stage diode 4 and a directional distribution analogous to F=costheta, if the emitting angle to the normal is theta, and all the secondary electrons enter the second stage diode 5.
JP5662379A 1979-05-08 1979-05-08 photomultiplier tube Expired JPS6036060B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5662379A JPS6036060B2 (en) 1979-05-08 1979-05-08 photomultiplier tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5662379A JPS6036060B2 (en) 1979-05-08 1979-05-08 photomultiplier tube

Publications (2)

Publication Number Publication Date
JPS55148358A true JPS55148358A (en) 1980-11-18
JPS6036060B2 JPS6036060B2 (en) 1985-08-17

Family

ID=13032407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5662379A Expired JPS6036060B2 (en) 1979-05-08 1979-05-08 photomultiplier tube

Country Status (1)

Country Link
JP (1) JPS6036060B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6707034B1 (en) 2002-08-29 2004-03-16 Hamamatsu Photonics K.K. Mass spectrometer and ion detector used therein

Also Published As

Publication number Publication date
JPS6036060B2 (en) 1985-08-17

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