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GB1152014A - Improvements in Ion Source Apparatus - Google Patents

Improvements in Ion Source Apparatus

Info

Publication number
GB1152014A
GB1152014A GB10268/67A GB1026867A GB1152014A GB 1152014 A GB1152014 A GB 1152014A GB 10268/67 A GB10268/67 A GB 10268/67A GB 1026867 A GB1026867 A GB 1026867A GB 1152014 A GB1152014 A GB 1152014A
Authority
GB
United Kingdom
Prior art keywords
emitter
ion source
source
march
emitter assembly
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.)
Expired
Application number
GB10268/67A
Inventor
Raymond Alvin Erickson
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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates 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 Varian Associates Inc filed Critical Varian Associates Inc
Publication of GB1152014A publication Critical patent/GB1152014A/en
Expired 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
    • H01J49/10—Ion sources; Ion guns
    • H01J49/14—Ion sources; Ion guns using particle bombardment, e.g. ionisation chambers
    • H01J49/147—Ion sources; Ion guns using particle bombardment, e.g. ionisation chambers with electrons, e.g. electron impact ionisation, electron attachment

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Electron Tubes For Measurement (AREA)
  • Electron Sources, Ion Sources (AREA)

Abstract

1,152,014. Ion sources. VARIAN ASSOCIATES. 3 March, 1967 [23 March, 1966], No. 10268/67. Heading H1D. An ion source, e.g. for a mass spectrometer of the cycloidal path crossed-field type, has alternative arrangements for producing an electron beam for ionizing the gas so that if one arrangement fails the other arrangement may be energized to sustain operation of the ion source. In the source shown of the type descibed in Specification 1,130,468 having an inner electrode 23 insulated by mica sheets 25 from two outer electrodes 22, 24, identical electron emitter assemblies 34, 36 are positioned at opposite ends of the electron beam path 37. Each emitter assembly includes an insulator block 38, a clamping screw 41, a filamentary emitter 44 and a beam collector 46 for the other emitter assembly. When one emitter assembly is used as a beam collector for the other the filamentary emitter is short-circuited. A suitable switching circuit is described and specific dimensions for the ion source are given. The source may be used for the production of positive or negative ions.
GB10268/67A 1966-03-23 1967-03-03 Improvements in Ion Source Apparatus Expired GB1152014A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US53692166A 1966-03-23 1966-03-23

Publications (1)

Publication Number Publication Date
GB1152014A true GB1152014A (en) 1969-05-14

Family

ID=24140468

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10268/67A Expired GB1152014A (en) 1966-03-23 1967-03-03 Improvements in Ion Source Apparatus

Country Status (3)

Country Link
US (1) US3423584A (en)
DE (1) DE1673257A1 (en)
GB (1) GB1152014A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005045877A1 (en) * 2003-10-31 2005-05-19 Saintech Pty Ltd Dual filament ion source

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3723729A (en) * 1971-02-02 1973-03-27 Hewlett Packard Co Ionization chamber for use with a mass spectrometer
US4163151A (en) * 1977-12-28 1979-07-31 Hughes Aircraft Company Separated ion source
US4933551A (en) * 1989-06-05 1990-06-12 The United State Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Reversal electron attachment ionizer for detection of trace species
US5924788A (en) * 1997-09-23 1999-07-20 Teledyne Lighting And Display Products Illuminating lens designed by extrinsic differential geometry
US6273596B1 (en) 1997-09-23 2001-08-14 Teledyne Lighting And Display Products, Inc. Illuminating lens designed by extrinsic differential geometry
US6037587A (en) * 1997-10-17 2000-03-14 Hewlett-Packard Company Chemical ionization source for mass spectrometry
US6765215B2 (en) * 2001-06-28 2004-07-20 Agilent Technologies, Inc. Super alloy ionization chamber for reactive samples
US7902529B2 (en) * 2007-08-02 2011-03-08 Thermo Finnigan Llc Method and apparatus for selectively providing electrons in an ion source

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2977470A (en) * 1955-04-14 1961-03-28 Cons Electrodynamics Corp Mass spectrometry
US2975277A (en) * 1955-05-10 1961-03-14 Vakutronik Veb Ion source
US3265890A (en) * 1963-12-20 1966-08-09 Nat Res Corp Mass spectrometer leak detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005045877A1 (en) * 2003-10-31 2005-05-19 Saintech Pty Ltd Dual filament ion source

Also Published As

Publication number Publication date
US3423584A (en) 1969-01-21
DE1673257A1 (en) 1971-06-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees