FR2363879A1 - Structure de mise en forme d'un faisceau d'electrons, avec pieges a ions - Google Patents

Structure de mise en forme d'un faisceau d'electrons, avec pieges a ions

Info

Publication number
FR2363879A1
FR2363879A1 FR7727538A FR7727538A FR2363879A1 FR 2363879 A1 FR2363879 A1 FR 2363879A1 FR 7727538 A FR7727538 A FR 7727538A FR 7727538 A FR7727538 A FR 7727538A FR 2363879 A1 FR2363879 A1 FR 2363879A1
Authority
FR
France
Prior art keywords
electron beam
beam shaping
ion traps
shaping structure
cathode
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Withdrawn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
FR7727538A
Other languages
English (en)
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.)
Tektronix Inc
Original Assignee
Tektronix Inc
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 Tektronix Inc filed Critical Tektronix Inc
Publication of FR2363879A1 publication Critical patent/FR2363879A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/84—Arrangements for removing or diverting unwanted particles, e.g. for negative ions or fringing electrons; Arrangements for velocity or mass selection

Landscapes

  • Electron Sources, Ion Sources (AREA)
  • Cold Cathode And The Manufacture (AREA)

Abstract

L'invention se rapporte à un dispositif à décharge d'électrons. Ce dispositif se caractérise en ce qu'il comporte une anode en deux sections séparées, la première section 20, proche de la cathode ayant une ouverture d'admission 22 et étant reliée à un potentiel positif, tandis que la deuxième section 24 est reliée à la terre et présente une ouverture de limitation 26. Application : tube à rayons cathodiques dont la cathode a une durée de vie allongée.
FR7727538A 1976-09-07 1977-09-06 Structure de mise en forme d'un faisceau d'electrons, avec pieges a ions Withdrawn FR2363879A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/720,858 US4075533A (en) 1976-09-07 1976-09-07 Electron beam forming structure utilizing an ion trap

Publications (1)

Publication Number Publication Date
FR2363879A1 true FR2363879A1 (fr) 1978-03-31

Family

ID=24895542

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7727538A Withdrawn FR2363879A1 (fr) 1976-09-07 1977-09-06 Structure de mise en forme d'un faisceau d'electrons, avec pieges a ions

Country Status (5)

Country Link
US (1) US4075533A (fr)
JP (1) JPS5333046A (fr)
DE (1) DE2738928A1 (fr)
FR (1) FR2363879A1 (fr)
NL (1) NL7708154A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2482778A1 (fr) * 1980-05-14 1981-11-20 Thomson Csf Canon a electrons pour faisceau convergent, et dispositif, tube vidicon notamment, muni d'un tel canon
US4521900A (en) * 1982-10-14 1985-06-04 Imatron Associates Electron beam control assembly and method for a scanning electron beam computed tomography scanner
US4588928A (en) * 1983-06-15 1986-05-13 At&T Bell Laboratories Electron emission system
US4625150A (en) * 1984-04-16 1986-11-25 Imatron, Inc. Electron beam control assembly for a scanning electron beam computed tomography scanner
NL8600098A (nl) * 1986-01-20 1987-08-17 Philips Nv Kathodestraalbuis met ionenval.
FR2630586A1 (fr) * 1988-04-22 1989-10-27 Thomson Csf Tube de camera avec ecran de suppression d'image parasite
US5223764A (en) * 1991-12-09 1993-06-29 Chunghwa Picture Tubes, Ltd. Electron gun with low voltage limiting aperture main lens
WO2002097845A2 (fr) * 2001-06-01 2002-12-05 Koninklijke Philips Electronics N.V. Canon a electrons, tube cathodique, et dispositif d'affichage d'image
EP1449230A1 (fr) * 2001-11-12 2004-08-25 Koninklijke Philips Electronics N.V. Dispositif d'affichage
US8334506B2 (en) 2007-12-10 2012-12-18 1St Detect Corporation End cap voltage control of ion traps
US7973277B2 (en) * 2008-05-27 2011-07-05 1St Detect Corporation Driving a mass spectrometer ion trap or mass filter
CN106158572B (zh) * 2015-03-30 2018-02-16 中国科学院大连化学物理研究所 一种电子枪

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2717322A (en) * 1952-11-01 1955-09-06 Rca Corp Cathode ray tube guns
BE526615A (fr) * 1953-02-19
DE1074163B (de) * 1953-05-30 1960-01-28 Standard Elektrik Lorenz Aktiengesellschaft, Stuttgart-Zuffenhausen Kathodenstrahlröhre mit einem Strahlerzeugungssystem mit Ionenfalle
US2986668A (en) * 1957-12-23 1961-05-30 Gen Dynamics Corp Cathode ray tube optical system

Also Published As

Publication number Publication date
NL7708154A (nl) 1978-03-09
JPS5333046A (en) 1978-03-28
US4075533A (en) 1978-02-21
DE2738928A1 (de) 1978-03-09

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Legal Events

Date Code Title Description
ST Notification of lapse