FR2294541A2 - METHOD AND DEVICE FOR SPACE SEPARATION OF ALTERNATIVE AND DIRECT CURRENT ELECTRIC FIELDS, WITH APPLICATIONS TO BORDER FIELDS, IN QUADRIPOLAR EARTH FILTERS - Google Patents

METHOD AND DEVICE FOR SPACE SEPARATION OF ALTERNATIVE AND DIRECT CURRENT ELECTRIC FIELDS, WITH APPLICATIONS TO BORDER FIELDS, IN QUADRIPOLAR EARTH FILTERS

Info

Publication number
FR2294541A2
FR2294541A2 FR7537133A FR7537133A FR2294541A2 FR 2294541 A2 FR2294541 A2 FR 2294541A2 FR 7537133 A FR7537133 A FR 7537133A FR 7537133 A FR7537133 A FR 7537133A FR 2294541 A2 FR2294541 A2 FR 2294541A2
Authority
FR
France
Prior art keywords
fields
quadripolar
alternative
applications
direct current
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.)
Granted
Application number
FR7537133A
Other languages
French (fr)
Other versions
FR2294541B2 (en
Inventor
Wade L Fite
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.)
Extrel CMS LLC
Original Assignee
Extrel CMS LLC
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
Priority claimed from US05/531,375 external-priority patent/US3936634A/en
Application filed by Extrel CMS LLC filed Critical Extrel CMS LLC
Publication of FR2294541A2 publication Critical patent/FR2294541A2/en
Application granted granted Critical
Publication of FR2294541B2 publication Critical patent/FR2294541B2/fr
Granted 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
    • H01J49/34—Dynamic spectrometers
    • H01J49/42—Stability-of-path spectrometers, e.g. monopole, quadrupole, multipole, farvitrons
    • H01J49/4205—Device types
    • H01J49/421—Mass filters, i.e. deviating unwanted ions without trapping
    • H01J49/4215—Quadrupole mass filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/02—Details
    • H01J49/06—Electron- or ion-optical arrangements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Electron Tubes For Measurement (AREA)
FR7537133A 1974-12-10 1975-12-04 METHOD AND DEVICE FOR SPACE SEPARATION OF ALTERNATIVE AND DIRECT CURRENT ELECTRIC FIELDS, WITH APPLICATIONS TO BORDER FIELDS, IN QUADRIPOLAR EARTH FILTERS Granted FR2294541A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/531,375 US3936634A (en) 1973-03-30 1974-12-10 Method and apparatus for improved focusing of ion currents in quadrupole mass filter

Publications (2)

Publication Number Publication Date
FR2294541A2 true FR2294541A2 (en) 1976-07-09
FR2294541B2 FR2294541B2 (en) 1978-12-29

Family

ID=24117369

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7537133A Granted FR2294541A2 (en) 1974-12-10 1975-12-04 METHOD AND DEVICE FOR SPACE SEPARATION OF ALTERNATIVE AND DIRECT CURRENT ELECTRIC FIELDS, WITH APPLICATIONS TO BORDER FIELDS, IN QUADRIPOLAR EARTH FILTERS

Country Status (5)

Country Link
JP (1) JPS587227B2 (en)
CA (1) CA1048164A (en)
DE (1) DE2550002A1 (en)
FR (1) FR2294541A2 (en)
GB (1) GB1515406A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5495107A (en) * 1994-04-06 1996-02-27 Thermo Jarrell Ash Corporation Analysis

Also Published As

Publication number Publication date
FR2294541B2 (en) 1978-12-29
DE2550002A1 (en) 1976-06-16
JPS587227B2 (en) 1983-02-08
GB1515406A (en) 1978-06-21
CA1048164A (en) 1979-02-06
JPS5168887A (en) 1976-06-14

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