GB1287291A - Improvements in or relating to ion sources - Google Patents

Improvements in or relating to ion sources

Info

Publication number
GB1287291A
GB1287291A GB46804/69A GB4680469A GB1287291A GB 1287291 A GB1287291 A GB 1287291A GB 46804/69 A GB46804/69 A GB 46804/69A GB 4680469 A GB4680469 A GB 4680469A GB 1287291 A GB1287291 A GB 1287291A
Authority
GB
United Kingdom
Prior art keywords
electrode
accelerating
repeller
voltage
ion source
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
GB46804/69A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1287291A publication Critical patent/GB1287291A/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

Abstract

1287291 Ion sources PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 23 Sept 1969 [26 Sept 1968] 46804/69 Heading H1D An ion source for a mass spectrometer comprises a gutter-shaped repeller electrode 305, an apertured extraction electrode 303 and an apertured accelerating electrode 306, in which gas in the region 301 is ionized by an electron beam perpendicular to the plane of the paper, wherein the inner wall 304 of the repeller electrode is shaped, as shown, to form a tapered edge portion 308 of the repeller electrode adjacent the extraction gap 302. This electrode configuration produces an electric field distribution in the repeller electrode, Figs. 8 and 9 (not shown), which does not differ appreciably whether the voltage on the accelerating electrode is low, e.g. 80 V., or high, e.g. 2000 V., the extractor electrode having a potential of 1 v. and the repeller electrode being grounded in both cases. Thus, when the ion source is used in a mass spectrometer in which the spectrum of the gas in the ion source is obtained by varying the accelerating electrode voltage, the extraction efficiency of light ions, e.g. of mass 2 with a 2000 V. accelerating voltage, and of heavy ions, e.g. of mass 40 with a 100 V. accelerating voltage, may vary by less than 25%. Prior art arrangements in which the cavity in the repeller electrode is rectangular or semi-circular Figs. 1 and 2 (not shown) are also described.
GB46804/69A 1968-09-26 1969-09-23 Improvements in or relating to ion sources Expired GB1287291A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6813748A NL6813748A (en) 1968-09-26 1968-09-26

Publications (1)

Publication Number Publication Date
GB1287291A true GB1287291A (en) 1972-08-31

Family

ID=19804759

Family Applications (1)

Application Number Title Priority Date Filing Date
GB46804/69A Expired GB1287291A (en) 1968-09-26 1969-09-23 Improvements in or relating to ion sources

Country Status (6)

Country Link
US (1) US3678267A (en)
CH (1) CH499198A (en)
DE (1) DE1945263A1 (en)
FR (1) FR2018925A1 (en)
GB (1) GB1287291A (en)
NL (1) NL6813748A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149055A (en) * 1977-05-02 1979-04-10 Hughes Aircraft Company Focusing ion accelerator
FR2657724A1 (en) * 1990-01-26 1991-08-02 Nermag Ste Nouvelle Ion source for quadrupole mass spectrometer
US5523646A (en) * 1994-08-17 1996-06-04 Tucciarone; John F. An arc chamber assembly for use in an ionization source
US7879357B2 (en) * 2003-04-28 2011-02-01 Bayer Schering Pharma Ag Pharmaceutical composition in the form of a hydrogel for transdermal administration of active ingredients
JP4691712B2 (en) * 2005-03-17 2011-06-01 独立行政法人産業技術総合研究所 Time-of-flight mass spectrometer
US7872422B2 (en) * 2006-07-18 2011-01-18 Guardian Industries Corp. Ion source with recess in electrode
WO2010109907A1 (en) * 2009-03-27 2010-09-30 国立大学法人大阪大学 Ion source, and mass spectroscope provided with same
US20150034837A1 (en) * 2013-08-01 2015-02-05 Varian Semiconductor Equipment Associates, Inc. Lifetime ion source

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499289A (en) * 1947-07-02 1950-02-28 John G Backus Ion generator
US2772362A (en) * 1955-04-26 1956-11-27 Gen Electric Ion source for a mass spectrometer

Also Published As

Publication number Publication date
US3678267A (en) 1972-07-18
NL6813748A (en) 1970-04-01
FR2018925A1 (en) 1970-06-26
CH499198A (en) 1970-11-15
DE1945263A1 (en) 1970-04-09

Similar Documents

Publication Publication Date Title
GB1175647A (en) Surface Ionization Ion Source Apparatus
GB1145107A (en) Ion beam microanalyser
GB1255962A (en) Improvements in or relating to gas chromatography-mass spectrometry
SE8700017L (en) JONPLASMAELEKTROKANON
GB1190451A (en) Ion Source for a Mass Spectrometer
GB1287291A (en) Improvements in or relating to ion sources
GB1464490A (en) Beam-plasma type ion source
GB1531505A (en) Method and apparatus for extracting well-formed high current ion beams from a plasma source
GB1470847A (en) Surface-layer analysis by ion scattering
US3890535A (en) Ion sources
GB1082819A (en) Improved mass spectrometer
GB1152014A (en) Improvements in Ion Source Apparatus
US4939425A (en) Four-electrode ion source
US2975279A (en) Mass spectrometers
GB824728A (en) Improvements relating to ion sources
GB1298940A (en) Improvements in or relating to ion sources
GB1152757A (en) Improvements in and relating to Ion Sources for Mass Spectrometers
GB1491839A (en) Ion beam apparatus
JPH0353402Y2 (en)
GB1398167A (en) High pressure ion sources
GB928168A (en) Improvements in or relating to mass filters including an electron impact source of ions
US2926251A (en) Ion acceleration system
GB1474149A (en) Time-of-flight mass spectrometer
GB1185203A (en) Improvements in or relating to mass spectrometers
GB792042A (en) Improvements in and relating to mass spectrometers

Legal Events

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