GB774602A - Mass spectrometer - Google Patents
Mass spectrometerInfo
- Publication number
- GB774602A GB774602A GB32907/54A GB3290754A GB774602A GB 774602 A GB774602 A GB 774602A GB 32907/54 A GB32907/54 A GB 32907/54A GB 3290754 A GB3290754 A GB 3290754A GB 774602 A GB774602 A GB 774602A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- ions
- voltage pulse
- mass spectrometer
- nov
- 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 5
- 230000003247 decreasing effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/26—Mass spectrometers or separator tubes
- H01J49/34—Dynamic spectrometers
- H01J49/40—Time-of-flight spectrometers
- H01J49/403—Time-of-flight spectrometers characterised by the acceleration optics and/or the extraction fields
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Electron Tubes For Measurement (AREA)
Abstract
774,602. Mass spectrometers. BENDIX AVIATION CORPORATION. Nov. 12, 1954 [Nov. 16, 1953], No. 32907/54. Class 39(1). To compensate for the initial random positions and velocities of the ions in a time-of-flight mass spectrometer, the ion extracting and accelerating field is varied with time e.g. increased linearly hyperbolically or parabolically. The amplitude of a voltage pulse applied to the backing electrode 22 may be increased, or a constant voltage pulse may be applied to the electrode 22 and a voltage pulse having a decreasing amplitude may be applied to the extracting electrode 24. The distance between the ion collector 36 and the electrode 24 is chosen, in accordance with Specification 728,172, to minimise errors resulting from the different positioning of the ions. The ions are generated in the space between electrodes 22, 24 by an electron stream passing from filament 10 to electrode 20 as described in Specification 713,993. The mass spectrometer may have a number of accelerating regions as described in Specification 727,683. Suitable electrode spacings are specified.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US774602XA | 1953-11-16 | 1953-11-16 | |
| US1162921XA | 1953-11-16 | 1953-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB774602A true GB774602A (en) | 1957-05-15 |
Family
ID=27616028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32907/54A Expired GB774602A (en) | 1953-11-16 | 1954-11-12 | Mass spectrometer |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB774602A (en) |
-
1954
- 1954-11-12 GB GB32907/54A patent/GB774602A/en not_active Expired
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