GB1400532A - Magnetic mass spectrometer - Google Patents

Magnetic mass spectrometer

Info

Publication number
GB1400532A
GB1400532A GB4065872A GB4065872A GB1400532A GB 1400532 A GB1400532 A GB 1400532A GB 4065872 A GB4065872 A GB 4065872A GB 4065872 A GB4065872 A GB 4065872A GB 1400532 A GB1400532 A GB 1400532A
Authority
GB
United Kingdom
Prior art keywords
mass spectrometer
analyser
sides
pole
pole faces
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
GB4065872A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to GB4065872A priority Critical patent/GB1400532A/en
Publication of GB1400532A publication Critical patent/GB1400532A/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
    • H01J49/30—Static spectrometers using magnetic analysers, e.g. Dempster spectrometer
    • 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

Landscapes

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

Abstract

1400532 Particle spectrometers E I DU PONT DE NEMOURS & CO 1 Sept 1972 40658/72 Heading H1D In a scanning mass spectrometer using a magnetic analyser the analyser pole-pieces are so shaped that they magnetize substantially uniformly and the flux distribution remains constant at all field strengths. It is stated that ideally the pole faces should have an exponential configuration in both the longitudinal and transverse directions. An approximation to this curvature can be used as shown in transverse section in Fig. 4, where the sides of the polepieces are flat and inclined at 11¢ degrees to the perpendicular to the pole faces to which they are connected by a circular curved portion of radius 1À25 times the gap spacing a. The longitudinal section, Fig. 5 (not shown) is generally similar. Shunts of magnetic material can be arranged adjacent the sides and ends of the gap to reduce fringing fields.
GB4065872A 1972-09-01 1972-09-01 Magnetic mass spectrometer Expired GB1400532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4065872A GB1400532A (en) 1972-09-01 1972-09-01 Magnetic mass spectrometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4065872A GB1400532A (en) 1972-09-01 1972-09-01 Magnetic mass spectrometer

Publications (1)

Publication Number Publication Date
GB1400532A true GB1400532A (en) 1975-07-16

Family

ID=10415994

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4065872A Expired GB1400532A (en) 1972-09-01 1972-09-01 Magnetic mass spectrometer

Country Status (1)

Country Link
GB (1) GB1400532A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524275A (en) * 1981-12-07 1985-06-18 Cottrell John S Multiple collector mass spectrometers
LU92130B1 (en) * 2013-01-11 2014-07-14 Ct De Rech Public Gabriel Lippmann Mass spectrometer with optimized magnetic shunt

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524275A (en) * 1981-12-07 1985-06-18 Cottrell John S Multiple collector mass spectrometers
LU92130B1 (en) * 2013-01-11 2014-07-14 Ct De Rech Public Gabriel Lippmann Mass spectrometer with optimized magnetic shunt
WO2014108376A1 (en) 2013-01-11 2014-07-17 Centre De Recherche Public - Gabriel Lippmann Mass spectrometer with optimized magnetic shunt
JP2016503226A (en) * 2013-01-11 2016-02-01 ルクセンブルク インスティチュート オブ サイエンス アンド テクノロジー（エルアイエスティー） Mass spectrometer with optimized magnetic shunt
US9401268B2 (en) 2013-01-11 2016-07-26 Luxembourg Institute Of Science And Technology (List) Mass spectrometer with optimized magnetic shunt
AU2014204936B2 (en) * 2013-01-11 2017-06-01 Luxembourg Institute Of Science And Technology (List) Mass spectrometer with optimized magnetic shunt

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee