GB935184A - Improvements in or relating to mass spectrometers - Google Patents
Improvements in or relating to mass spectrometersInfo
- Publication number
- GB935184A GB935184A GB17210/60A GB1721060A GB935184A GB 935184 A GB935184 A GB 935184A GB 17210/60 A GB17210/60 A GB 17210/60A GB 1721060 A GB1721060 A GB 1721060A GB 935184 A GB935184 A GB 935184A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- hyperboloids
- potentiometers
- potentiometer
- sets
- 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
- H01J49/34—Dynamic spectrometers
- H01J49/36—Radio frequency spectrometers, e.g. Bennett-type spectrometers, Redhead-type spectrometers
- H01J49/38—Omegatrons ; using ion cyclotron resonance
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
935,184. Mass spectrometers. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 16, 1960 [May 19, 1959], No. 17210/60. Class 39 (1). In a high-frequency mass spectrometer of the cyclotron resonance or omegatron type, an electron beam of diameter less than 0.5 mm. is projected from cathode 4 in a direction parallel to a homogenous static magnetic field into an ionization zone bounded by sets of electrodes 1, 2, 3 which lie in planes subdividing two conjugate hyperboloids of revolution. The sets of electrodes 1, 3 and 2 are respectively connected to potentiometers 10 and 11 comprising a number of resistors. A small positive potential is produced across potentiometer 10 while potentiometer 11 is at earth potential. The H.F. source 12 is connected across the potentiometers 10, 11. The ion current collected by electrodes 2 is measured by amplifier 13. The tangent of the angle between the asymptotic surfaces of the hyperboloids and the axis of revolution equals #2, whereby the radial field strength in the ionization chamber is proportional to the distance from the axis. The remaining electrodes shown, include a screen electrode 5, a control electrode 6 for maintaining constant electron current, two screening electrodes 7, 8, and an electron collector electrode 9.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL239331 | 1959-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB935184A true GB935184A (en) | 1963-08-28 |
Family
ID=19751741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17210/60A Expired GB935184A (en) | 1959-05-19 | 1960-05-16 | Improvements in or relating to mass spectrometers |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3086111A (en) |
| CH (1) | CH384249A (en) |
| DE (1) | DE1169698B (en) |
| GB (1) | GB935184A (en) |
| NL (2) | NL239331A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2403590A (en) * | 2003-06-05 | 2005-01-05 | Bruker Daltonik Gmbh | Electron capture dissociation in a high frequency quadrupole ion trap |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4105917A (en) * | 1976-03-26 | 1978-08-08 | The Regents Of The University Of California | Method and apparatus for mass spectrometric analysis at ultra-low pressures |
| US4650999A (en) * | 1984-10-22 | 1987-03-17 | Finnigan Corporation | Method of mass analyzing a sample over a wide mass range by use of a quadrupole ion trap |
| DE3914838A1 (en) * | 1989-05-05 | 1990-11-08 | Spectrospin Ag | ION CYCLOTRON RESONANCE SPECTROMETER |
| GB0211373D0 (en) * | 2002-05-17 | 2002-06-26 | Micromass Ltd | Mass spectrometer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT528250A (en) * | 1953-12-24 | |||
| US2829260A (en) * | 1954-11-19 | 1958-04-01 | Beckman Instruments Inc | Mass spectrometer |
-
0
- NL NL104008D patent/NL104008C/xx active
- NL NL239331D patent/NL239331A/xx unknown
-
1960
- 1960-05-10 US US28141A patent/US3086111A/en not_active Expired - Lifetime
- 1960-05-14 DE DEN18342A patent/DE1169698B/en active Pending
- 1960-05-16 GB GB17210/60A patent/GB935184A/en not_active Expired
- 1960-05-16 CH CH557660A patent/CH384249A/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2403590A (en) * | 2003-06-05 | 2005-01-05 | Bruker Daltonik Gmbh | Electron capture dissociation in a high frequency quadrupole ion trap |
| GB2403590B (en) * | 2003-06-05 | 2006-04-12 | Bruker Daltonik Gmbh | Ion fragmentation in RF ion traps |
| US7030374B2 (en) | 2003-06-05 | 2006-04-18 | Bruker Daltonik Gmbh | Ion fragmentation in RF ion traps by electron capture with magnetic field |
Also Published As
| Publication number | Publication date |
|---|---|
| US3086111A (en) | 1963-04-16 |
| NL239331A (en) | |
| NL104008C (en) | |
| CH384249A (en) | 1964-11-15 |
| DE1169698B (en) | 1964-05-06 |
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