GB1288254A - - Google Patents
Info
- Publication number
- GB1288254A GB1288254A GB4931569A GB4931569A GB1288254A GB 1288254 A GB1288254 A GB 1288254A GB 4931569 A GB4931569 A GB 4931569A GB 4931569 A GB4931569 A GB 4931569A GB 1288254 A GB1288254 A GB 1288254A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulses
- deflection
- pulse
- spark
- generator
- 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
- H01J49/02—Details
- H01J49/10—Ion sources; Ion guns
- H01J49/18—Ion sources; Ion guns using spark ionisation
-
- 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)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Electron Tubes For Measurement (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
1288254 Mass spectrometers NIHON DENSHI KK 7 Oct 1969 [9 Oct 1968] 49315/69 Heading H1D In a mass spectrometer in which intermittent ion beams from an ion source pass between deflection electrodes 5 which are pulsed to deflect the ion beams to a detector, an arrangement is provided to control the generation of the intermittent ion beams and the application of the pulses to the deflection electrodes such that no ions are present between the deflection electrodes during the rise and fall times of the pulses. The deflection electrode pulses are derived from the output of a clock pulse generator 11 via gate circuit 14, frequency divider 15 and pulse generator 16. The output from clock generator 11 is also fed through delay circuit 12, pulse generator 13, high frequency generator 10 and transformer 9 to supply the spark pulse to the spark electrodes 1 of the ion source on which the specimen to be analysed is arranged. There may be one or more complete spark pulses during each deflection pulse. The arrangement ensures a static image of the ions in the beam formed on the photographic plate 8 of the detector, which comprises electrostatic analyser 6 and magnetic analyser 7.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7369068 | 1968-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1288254A true GB1288254A (en) | 1972-09-06 |
Family
ID=13525444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4931569A Expired GB1288254A (en) | 1968-10-09 | 1969-10-07 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3600573A (en) |
| DE (1) | DE1950938C3 (en) |
| FR (1) | FR2020214A1 (en) |
| GB (1) | GB1288254A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1318400A (en) * | 1970-08-28 | 1973-05-31 | Ass Elect Ind | Mass spectrometry |
| US3809896A (en) * | 1971-05-25 | 1974-05-07 | Varian Mat Gmbh | Method for the mass spectrometric analysis of solids |
| JPS532599B2 (en) * | 1972-10-30 | 1978-01-30 | ||
| US4825080A (en) * | 1986-03-25 | 1989-04-25 | Universite De Reims Champagne-Ardenne | Electrical particle gun |
| EP0304525A1 (en) * | 1987-08-28 | 1989-03-01 | FISONS plc | Pulsed microfocused ion beams |
| US4831255A (en) * | 1988-02-24 | 1989-05-16 | Gatan, Inc. | Variable-attenuation parallel detector |
| GB0310696D0 (en) * | 2003-05-09 | 2003-06-11 | Micromass Ltd | Mass spectrometer |
| EP1738396B1 (en) * | 2004-04-05 | 2018-10-31 | Micromass UK Limited | Mass spectrometer |
| DE102014000897A1 (en) * | 2014-01-23 | 2015-07-23 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | cable assembly |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2810075A (en) * | 1954-02-08 | 1957-10-15 | Cons Electrodynamics Corp | Mass spectrometry |
| US3096437A (en) * | 1961-03-27 | 1963-07-02 | High Voltage Engineering Corp | Means for pulsing an ion beam |
| US3256429A (en) * | 1963-01-23 | 1966-06-14 | Cons Electrodynamics Corp | Material sparking method and apparatus |
-
1969
- 1969-10-06 US US864054A patent/US3600573A/en not_active Expired - Lifetime
- 1969-10-07 GB GB4931569A patent/GB1288254A/en not_active Expired
- 1969-10-07 FR FR6934222A patent/FR2020214A1/fr not_active Withdrawn
- 1969-10-09 DE DE1950938A patent/DE1950938C3/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2020214A1 (en) | 1970-07-10 |
| DE1950938C3 (en) | 1974-04-18 |
| DE1950938B2 (en) | 1973-09-20 |
| DE1950938A1 (en) | 1970-04-30 |
| US3600573A (en) | 1971-08-17 |
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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 |