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GB1004945A - Improvements in or relating to mass spectroscopes - Google Patents

Improvements in or relating to mass spectroscopes

Info

Publication number
GB1004945A
GB1004945A GB7813/63A GB781363A GB1004945A GB 1004945 A GB1004945 A GB 1004945A GB 7813/63 A GB7813/63 A GB 7813/63A GB 781363 A GB781363 A GB 781363A GB 1004945 A GB1004945 A GB 1004945A
Authority
GB
United Kingdom
Prior art keywords
field
sector
magnetic field
magnetic
mass
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
GB7813/63A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1004945A publication Critical patent/GB1004945A/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
    • H01J49/26—Mass spectrometers or separator tubes
    • H01J49/28—Static spectrometers
    • H01J49/284—Static spectrometers using electrostatic and magnetic sectors with simple focusing, e.g. with parallel fields such as Aston spectrometer
    • H01J49/286—Static spectrometers using electrostatic and magnetic sectors with simple focusing, e.g. with parallel fields such as Aston spectrometer with energy analysis, e.g. Castaing filter

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Electron Tubes For Measurement (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Abstract

1,004,945. Mass spectrometers. H. EWALD. Feb. 27, 1963 [Feb. 28, 1962], No. 7813/63. Heading H1D. In a mass spectrograph or mass spectrometer using the parabola method with magnetic and electric fields deflecting the ions in perpendicular directions, in order to focus deflected ions of like mass and energy at one point, the entry and exit surfaces of the magnetic field are mutually inclined to form a sector field while condenser plates which provide a sector-shaped electric field follow inner and outer boundaries of an arcuate passage through which the particles pass, and the plane of curvature of the mean line of this passage is perpendicular to the magnetic field. The Figure shows the magnetic sector field #m followed by the electric sector field #e as viewed in two perpendicular directions. The condenser may be cylindrical or toroidal and the magnetic field boundaries may be curved. The polepieces of the electromagnetic providing the magnetic field may be provided with semi-cylindrical, rotatable inserts to vary the inclination of the field at the entry or exit boundaries. The condenser may also be rotated. Reference is made to the two sector fields being superimposed and either field may precede the other. Equations for calculation allowing for the fringe effects of the magnetic field are given.
GB7813/63A 1962-02-28 1963-02-27 Improvements in or relating to mass spectroscopes Expired GB1004945A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE0022471 1962-02-28

Publications (1)

Publication Number Publication Date
GB1004945A true GB1004945A (en) 1965-09-22

Family

ID=7070803

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7813/63A Expired GB1004945A (en) 1962-02-28 1963-02-27 Improvements in or relating to mass spectroscopes

Country Status (2)

Country Link
US (1) US3194961A (en)
GB (1) GB1004945A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5520637B2 (en) * 1973-05-07 1980-06-04
FR2376511A1 (en) * 1976-12-31 1978-07-28 Cameca ULTRA-FAST SCAN MASS SPECTROMETER
JPS56156662A (en) * 1980-05-02 1981-12-03 Hitachi Ltd Device for ion implantation
US4427885A (en) 1981-11-27 1984-01-24 Shimadzu Seisakusho Ltd. Double focussing mass spectrometer
US4789787A (en) * 1987-05-27 1988-12-06 Microbeam Inc. Wien filter design
GB8812940D0 (en) * 1988-06-01 1988-07-06 Vg Instr Group Mass spectrometer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2572600A (en) * 1947-01-17 1951-10-23 Arthur J Dempster Mass spectrograph
US2851608A (en) * 1956-12-07 1958-09-09 Cons Electrodynamics Corp Mass spectrometer
US2950388A (en) * 1957-10-24 1960-08-23 Frederick A White Mass spectrometer
US2947868A (en) * 1959-07-27 1960-08-02 Geophysics Corp Of America Mass spectrometer

Also Published As

Publication number Publication date
US3194961A (en) 1965-07-13

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