EP0193311A3 - Ion detector - Google Patents

Ion detector Download PDF

Info

Publication number
EP0193311A3
EP0193311A3 EP86300994A EP86300994A EP0193311A3 EP 0193311 A3 EP0193311 A3 EP 0193311A3 EP 86300994 A EP86300994 A EP 86300994A EP 86300994 A EP86300994 A EP 86300994A EP 0193311 A3 EP0193311 A3 EP 0193311A3
Authority
EP
European Patent Office
Prior art keywords
ion detector
output
dynode
conversion
charged particles
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.)
Withdrawn
Application number
EP86300994A
Other languages
German (de)
French (fr)
Other versions
EP0193311A2 (en
Inventor
Jonathon W. Amy
Paul Edwin Kelley
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.)
Thermo Finnigan LLC
Original Assignee
Finnigan Corp
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 Finnigan Corp filed Critical Finnigan Corp
Publication of EP0193311A2 publication Critical patent/EP0193311A2/en
Publication of EP0193311A3 publication Critical patent/EP0193311A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/02—Details
    • H01J49/025—Detectors specially adapted to particle spectrometers
    • 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
    • H01J43/24—Dynodes having potential gradient along their surfaces
    • H01J43/246—Microchannel plates [MCP]

Abstract

An ion detector is disclosed herein and includes a conversion dynode for receiving at its input charged particles and for delivering at its output charged particles such that the latter particles leave the output of said dynode in a diffused manner and a microchannel electron multiplier disposed adjacent the conversion electrode to receive said diffused charged particles from the output of the conversion dynode and a collector electrode for receiving electrons exiting the microchannel plate. The ion detector also in­ cludes a resistive divider for providing voltages to said conversion dynode, across the microchannel plate and to said collector electrode.
EP86300994A 1985-02-22 1986-02-13 Ion detector Withdrawn EP0193311A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70465185A 1985-02-22 1985-02-22
US704651 1985-02-22

Publications (2)

Publication Number Publication Date
EP0193311A2 EP0193311A2 (en) 1986-09-03
EP0193311A3 true EP0193311A3 (en) 1987-11-04

Family

ID=24830368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86300994A Withdrawn EP0193311A3 (en) 1985-02-22 1986-02-13 Ion detector

Country Status (2)

Country Link
EP (1) EP0193311A3 (en)
JP (1) JPS61233958A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2618605A1 (en) * 1987-07-22 1989-01-27 Nermag Sa Ste Nouvelle Device for detecting and amplifying small positive or negative ion currents
US4988868A (en) * 1989-05-15 1991-01-29 Galileo Electro-Optics Corp. Ion detector
GB2253302A (en) * 1991-02-05 1992-09-02 Kratos Analytical Ltd Ion detector
GB9604655D0 (en) * 1996-03-05 1996-05-01 Fisons Plc Mass spectrometer and detector apparatus therefor
US7157697B2 (en) 2002-12-12 2007-01-02 Micromass Uk Limited Ion detector
GB0229001D0 (en) * 2002-12-12 2003-01-15 Micromass Ltd Mass spectrometer
GB2402546B (en) * 2002-12-12 2005-05-18 Micromass Ltd Ion detector
GB2562990A (en) * 2017-01-26 2018-12-05 Micromass Ltd Ion detector assembly
CN110828276B (en) * 2019-11-19 2022-02-11 金陵科技学院 Large-area photomultiplier with hybrid electron multiplication system
CN111487483B (en) * 2020-05-22 2022-05-24 北京卫星环境工程研究所 Compact type space charged particle detector structure based on microchannel plate

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986024A (en) * 1974-12-23 1976-10-12 Kernforschungsanlage Julich Gesellschaft Mit Beschrankter Haftung Arrangement for electrical detection of ions for mass-spectroscopic determination of the mass-magnitudes and mass-intensities of ions

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986024A (en) * 1974-12-23 1976-10-12 Kernforschungsanlage Julich Gesellschaft Mit Beschrankter Haftung Arrangement for electrical detection of ions for mass-spectroscopic determination of the mass-magnitudes and mass-intensities of ions

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
NUCLEAR INSTRUMENTS AND METHODS, vol. 162, 1979, pages 587-601, North-Holland Publishing Co., Amsterdam, NL; J.L. WIZA: "Microchannel plate detectors" *
OPTICAL ENGINEERING, vol. 17, no. 6, November/December 1978, pages 640-644, Bellingham, US; A.R. ASAM: "Advances in microchannel plate technology and applications" *

Also Published As

Publication number Publication date
JPS61233958A (en) 1986-10-18
EP0193311A2 (en) 1986-09-03

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Inventor name: KELLEY, PAUL EDWIN

Inventor name: AMY, JONATHON W.