GB877112A - Improvements in ion sources - Google Patents
Improvements in ion sourcesInfo
- Publication number
- GB877112A GB877112A GB4944/58A GB494458A GB877112A GB 877112 A GB877112 A GB 877112A GB 4944/58 A GB4944/58 A GB 4944/58A GB 494458 A GB494458 A GB 494458A GB 877112 A GB877112 A GB 877112A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- grid
- plate
- potential
- filament
- 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
- 150000002500 ions Chemical class 0.000 abstract 4
- 238000000605 extraction Methods 0.000 abstract 1
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
- H01J49/147—Ion sources; Ion guns using particle bombardment, e.g. ionisation chambers with electrons, e.g. electron impact ionisation, electron attachment
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Electron Tubes For Measurement (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Electron Sources, Ion Sources (AREA)
Abstract
877,112. Ion sources. COMMISSARIAT A L'ENERGIE ATOMIQUE. Feb. 14, 1958 [Feb. 23, 1957], No. 4944/58. Class 39(1). An ion source, particularly for use in a mass spectrometer, comprises an electronemissive filament 1, an accelerating grid 2, a plate electrode 3 and an electrode 4, at a highly negative potential, formed with a slit for the extraction of ions. The filament is at a potential intermediate those of the grid 2 and plate 3 so that electrons oscillate in the space between the grid and plate to ionize the gaseous content of the source. As shown, side electrodes 5, 6, at adjustable potentials close to that of electrode 3, are provided to focus the ions towards the slit in electrode 4. Suitable dimensions and potential for the various electrodes are given.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR346621X | 1957-02-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB877112A true GB877112A (en) | 1961-09-13 |
Family
ID=8892471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4944/58A Expired GB877112A (en) | 1957-02-23 | 1958-02-14 | Improvements in ion sources |
Country Status (6)
Country | Link |
---|---|
US (1) | US2930917A (en) |
BE (1) | BE564648A (en) |
CH (1) | CH346621A (en) |
DE (1) | DE1071853B (en) |
GB (1) | GB877112A (en) |
LU (1) | LU35771A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2189645A (en) * | 1986-03-26 | 1987-10-28 | Centre Nat Rech Scient | Plasma generator |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1052902A (en) * | 1963-02-19 | |||
US3346735A (en) * | 1964-12-07 | 1967-10-10 | Dow Chemical Co | Electron source for mass spectrometers having an elongated filament and a concave focusing electrode with a resistive coating |
US3356843A (en) * | 1965-02-01 | 1967-12-05 | Gen Electric | Mass spectrometer electron beam ion source having means for focusing the electron beam |
US5523646A (en) * | 1994-08-17 | 1996-06-04 | Tucciarone; John F. | An arc chamber assembly for use in an ionization source |
DE112015002780B4 (en) | 2014-06-12 | 2024-05-16 | Micromass Uk Limited | Secondary electrospray ionization at reduced pressure |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2499320A (en) * | 1947-06-23 | 1950-02-28 | Loevinger Robert | Ion generator |
US2495908A (en) * | 1948-07-16 | 1950-01-31 | Sylvania Electric Prod | Thermionic discharge device |
US2772364A (en) * | 1955-05-06 | 1956-11-27 | Cons Electrodynamics Corp | Mass spectrometry |
-
0
- DE DENDAT1071853D patent/DE1071853B/de active Pending
- BE BE564648D patent/BE564648A/xx unknown
- LU LU35771D patent/LU35771A1/xx unknown
-
1958
- 1958-02-10 CH CH346621D patent/CH346621A/en unknown
- 1958-02-14 GB GB4944/58A patent/GB877112A/en not_active Expired
- 1958-02-20 US US716386A patent/US2930917A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2189645A (en) * | 1986-03-26 | 1987-10-28 | Centre Nat Rech Scient | Plasma generator |
GB2189645B (en) * | 1986-03-26 | 1990-12-05 | Centre Nat Rech Scient | Method of generating a plasma. |
Also Published As
Publication number | Publication date |
---|---|
LU35771A1 (en) | |
DE1071853B (en) | |
US2930917A (en) | 1960-03-29 |
BE564648A (en) | |
CH346621A (en) | 1960-05-31 |
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