GB948957A - Improvements relating to mass spectrometer ion sources - Google Patents
Improvements relating to mass spectrometer ion sourcesInfo
- Publication number
- GB948957A GB948957A GB3686361A GB3686361A GB948957A GB 948957 A GB948957 A GB 948957A GB 3686361 A GB3686361 A GB 3686361A GB 3686361 A GB3686361 A GB 3686361A GB 948957 A GB948957 A GB 948957A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shutter
- chamber
- aperture
- mass spectrometer
- ionized
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Electron Tubes For Measurement (AREA)
Abstract
948,957. Ion sources. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 8, 1962 [Oct. 13, 1961], No. 36863/61. Heading H1D. The evacuable chamber of a mass spectrometer ion source is provided with a transparent viewing aperture protected by a movable shutter which prevents the obscuring of the aperture by contaminating material emitted by the sample being ionized. As shown, an ion source comprises a chamber 1 having a transparent cover plate 3, insulating supports 5 which project inwardly through the cylindrical side wall 2 of the chamber for holding rods 6 of the sample material, mechanisms 8 for moving the supports 5, a shield 11 having an aperture 12 through which the rods 6 may be inspected, and a shutter 13, e.g. of tantalum, movable by a mechanism 16 so that it can be located between the aperture 12 and the cover 3 to prevent contamination of the latter when the sample material is ionized by producing a spark between the electrodes 6. The mechanism 16 includes a cam 24 mounted on a shaft 23 and attached to a bar 14 carrying the shutter 13, so that rotation of a hand wheel 25 moves the bar 14 into and out from the chamber 1. A mechanism including a magnet for moving the shutter 13 may replace the mechanism 16. In another embodiment, Figs. 2 and 3 (not shown), the shutter is pivoted within the chamber 1 and can be rotated into its protecting position.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3686361A GB948957A (en) | 1961-10-13 | 1961-10-13 | Improvements relating to mass spectrometer ion sources |
| FR911895A FR1335887A (en) | 1961-10-13 | 1962-10-11 | Improvements in mass spectrometers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3686361A GB948957A (en) | 1961-10-13 | 1961-10-13 | Improvements relating to mass spectrometer ion sources |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB948957A true GB948957A (en) | 1964-02-05 |
Family
ID=10391791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3686361A Expired GB948957A (en) | 1961-10-13 | 1961-10-13 | Improvements relating to mass spectrometer ion sources |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB948957A (en) |
-
1961
- 1961-10-13 GB GB3686361A patent/GB948957A/en not_active Expired
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