GB1320206A - Mass spectrographs - Google Patents
Mass spectrographsInfo
- Publication number
- GB1320206A GB1320206A GB3677970A GB3677970A GB1320206A GB 1320206 A GB1320206 A GB 1320206A GB 3677970 A GB3677970 A GB 3677970A GB 3677970 A GB3677970 A GB 3677970A GB 1320206 A GB1320206 A GB 1320206A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stop
- plane
- lens
- sector
- magnetic sector
- 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
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
- H01J49/322—Static spectrometers using double focusing with a magnetic sector of 90 degrees, e.g. Mattauch-Herzog type
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Electron Tubes For Measurement (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
1320206 Mass spectrometers INSTITUT FUR PLASMAPHYSIK GmbH 29 July 1970 [30 July 1969] 36779/70 Heading H1D A double focusing mass spectrograph comprises an ion entrance slit 10, Fig. 1, means 16 and 24 for producing electric and magnetic sector fields operating in the same sense, an energy-limiting stop 20, and an electrostatic lens 22 arranged at a distance f equal to its focal length behind the stop 20, and electrostatic means are provided for forming an image of the entrance slit in the plane of the energy limiting stop. In Fig. 1 the latter comprises a second electrostatic lens 18 arranged at a distance f equal to its focal length in front of the stop 20. The focal lengths of the two lenses may be adjustable electrically either together or separately. Fig. 1 also includes a second aperture stop 14 and the widths of the apertures in one or both stops 14 and 20 may be adjustable. The spectrum is formed at the boundary 26 of the magnetic sector, and a photographic plate may be mounted in this plane. In a modification, (Fig. 3, not shown), the lens 18 is disposed before instead of after the electric sector 16. In another modification (Fig. 4, not shown) this lens is omitted and the focusing is achieved by the electric sector which extends over 90 degrees. With this arrangement the entrance plane of the magnetic sector may be oblique to the ion paths and the image plane is inclined to the boundary of the magnetic sector.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691938770 DE1938770C3 (en) | 1969-07-30 | Mass spectrograph with double focusing |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1320206A true GB1320206A (en) | 1973-06-13 |
Family
ID=5741386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3677970A Expired GB1320206A (en) | 1969-07-30 | 1970-07-29 | Mass spectrographs |
Country Status (6)
Country | Link |
---|---|
US (1) | US3622781A (en) |
BE (1) | BE749340A (en) |
FR (1) | FR2056163A5 (en) |
GB (1) | GB1320206A (en) |
LU (1) | LU61429A1 (en) |
NL (1) | NL7004207A (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2242987B2 (en) * | 1972-09-01 | 1980-06-12 | Gesellschaft Fuer Strahlen- Und Umweltforschung Mbh, 8000 Muenchen | Device for separating neutral particles and fast ions from slow ions |
JPS5853472B2 (en) * | 1975-01-16 | 1983-11-29 | ニホンシンクウギジユツ カブシキガイシヤ | ion program |
JPS5240393A (en) * | 1975-09-26 | 1977-03-29 | Hitachi Ltd | Mass spectrometer |
FR2558988B1 (en) * | 1984-01-27 | 1987-08-28 | Onera (Off Nat Aerospatiale) | HIGH-CLARITY MASS SPECTROMETER CAPABLE OF SIMULTANEOUS MULTIPLE DETECTION |
NL1025500C2 (en) * | 2004-02-17 | 2005-08-19 | Fei Co | Particle source with selectable beam current and energy distribution. |
EP2128885A1 (en) | 2008-05-26 | 2009-12-02 | FEI Company | Charged particle source with integrated energy filter |
EP2226830B1 (en) * | 2009-03-06 | 2014-01-08 | FEI Company | Charged particle beam processing |
EP2402475A1 (en) | 2010-06-30 | 2012-01-04 | Fei Company | Beam-induced deposition at cryogenic temperatures |
WO2017075470A1 (en) * | 2015-10-28 | 2017-05-04 | Duke University | Mass spectrometers having segmented electrodes and associated methods |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US3487208A (en) * | 1967-06-01 | 1969-12-30 | Us Air Force | Method of improving sensitivity and resolution of a mass spectrometer |
US3524056A (en) * | 1968-01-05 | 1970-08-11 | Atomic Energy Commission | Double focusing spectrograph employing a rotatable quadrupole lens to minimize doppler broadening |
-
1970
- 1970-03-24 NL NL7004207A patent/NL7004207A/xx not_active Application Discontinuation
- 1970-04-21 FR FR7014382A patent/FR2056163A5/fr not_active Expired
- 1970-04-22 BE BE749340D patent/BE749340A/en unknown
- 1970-04-29 US US32931A patent/US3622781A/en not_active Expired - Lifetime
- 1970-07-28 LU LU61429D patent/LU61429A1/xx unknown
- 1970-07-29 GB GB3677970A patent/GB1320206A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL7004207A (en) | 1971-02-02 |
DE1938770B2 (en) | 1976-10-21 |
BE749340A (en) | 1970-10-01 |
DE1938770A1 (en) | 1971-02-18 |
FR2056163A5 (en) | 1971-05-14 |
US3622781A (en) | 1971-11-23 |
LU61429A1 (en) | 1970-09-28 |
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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 |