GB1441290A - Mass spectrometers - Google Patents

Mass spectrometers

Info

Publication number
GB1441290A
GB1441290A GB5866573A GB5866573A GB1441290A GB 1441290 A GB1441290 A GB 1441290A GB 5866573 A GB5866573 A GB 5866573A GB 5866573 A GB5866573 A GB 5866573A GB 1441290 A GB1441290 A GB 1441290A
Authority
GB
United Kingdom
Prior art keywords
ion
accelerating voltages
ions
sources
dec
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
GB5866573A
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.)
Jeol Ltd
Original Assignee
Jeol Ltd
Nihon Denshi KK
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 Jeol Ltd, Nihon Denshi KK filed Critical Jeol Ltd
Publication of GB1441290A publication Critical patent/GB1441290A/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
    • H01J49/32—Static spectrometers using double focusing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/02—Details
    • H01J49/022—Circuit arrangements, e.g. for generating deviation currents or voltages ; Components associated with high voltage supply
    • 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

Landscapes

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

Abstract

1441290 Mass spectrometers NIHON DENSHI KK 18 Dec 1973 [18 Dec 1972] 58665/73 Heading H1D A multiple beam mass spectrometer comprises a plurality of ion sources 1, 2 supplied from 9 with a respective ion accelerating voltages which periodically, at least, differ under the control of a pulse generator 8, electrodes 3, 4 for directing the ion beams to a common path at slit 11, means 13 for electrostatically separating the ions according to their energy, the beam emerging from slit 16 being a time divided multiplex beam as a result of the periodic variations in the ion source accelerating voltages. This emergent beam is then magnetically analysed at 14 according to the ion mass-charge ratios, the analysed ions then being detected at 19 to give a signal which is processed at 23 to separate the components of the multiplex signal. The accelerating voltages applied to the ion sources can be in antiphase, or one can be held constant. The emergence of ions from the sources can be prevented during the time when the accelerating voltages are being charged. The power source 15 of the electrostatic analyser 13 can also be connected to the pulse generator 8, Fig. 2 (not shown). It is stated that this improves the focussing and reduces aberrations.
GB5866573A 1972-12-18 1973-12-18 Mass spectrometers Expired GB1441290A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47126947A JPS5222558B2 (en) 1972-12-18 1972-12-18

Publications (1)

Publication Number Publication Date
GB1441290A true GB1441290A (en) 1976-06-30

Family

ID=14947820

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5866573A Expired GB1441290A (en) 1972-12-18 1973-12-18 Mass spectrometers

Country Status (5)

Country Link
US (1) US3886357A (en)
JP (1) JPS5222558B2 (en)
DE (1) DE2362560A1 (en)
FR (1) FR2210821B3 (en)
GB (1) GB1441290A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984682A (en) * 1974-07-12 1976-10-05 Nihon Denshi Kabushiki Kaisha Mass spectrometer with superimposed electric and magnetic fields
JPH0273723U (en) * 1988-11-26 1990-06-05
GB9026777D0 (en) * 1990-12-10 1991-01-30 Vg Instr Group Mass spectrometer with electrostatic energy filter
EP1468438A4 (en) * 2002-01-03 2007-11-21 Univ Indiana Res & Tech Corp Simultaneous acquisation of chemical information
WO2004093124A2 (en) * 2003-03-31 2004-10-28 Beckman Coulter, Inc. Mass analyser allowing parallel processing one or more analytes
US6777670B1 (en) * 2003-03-31 2004-08-17 Beckman Coulter, Inc. Mass analyzer capable of parallel processing one or more analytes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2945126A (en) * 1958-06-23 1960-07-12 Bell & Howell Co Mass spectrometer
US3233099A (en) * 1963-09-16 1966-02-01 Cons Electrodynamics Corp Double-focusing mass spectrometer having electrically adjustable electrostatic an alyzer and adjustable electrostatic lens
GB1134448A (en) * 1965-09-30 1968-11-20 Hitachi Ltd Double focussing mass spectrometer
GB1149426A (en) * 1966-12-01 1969-04-23 Ass Elect Ind Improvements relating to mass spectrometry
US3796872A (en) * 1970-12-18 1974-03-12 Ass Elect Ind Mass spectrometry

Also Published As

Publication number Publication date
FR2210821B3 (en) 1976-10-15
FR2210821A1 (en) 1974-07-12
DE2362560A1 (en) 1974-06-20
US3886357A (en) 1975-05-27
JPS5222558B2 (en) 1977-06-17
JPS4984489A (en) 1974-08-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee