GB547801A - Improvements in or relating to electron multiplier apparatus - Google Patents
Improvements in or relating to electron multiplier apparatusInfo
- Publication number
- GB547801A GB547801A GB3088/41A GB308841A GB547801A GB 547801 A GB547801 A GB 547801A GB 3088/41 A GB3088/41 A GB 3088/41A GB 308841 A GB308841 A GB 308841A GB 547801 A GB547801 A GB 547801A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- secondary cathode
- apertures
- electrodes
- additional
- 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
- H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
- H01J43/04—Electron multipliers
- H01J43/30—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
Landscapes
- Electron Tubes For Measurement (AREA)
Abstract
547,801. Electron multipliers. BOSCH, F. J. G. VAN DEN, and VACUUM-SCIENCE PRODUCTS, Ltd. March 6, 1941, No. 3088. [Class 39 (i)] An electron multiplier has a secondary cathode 14 with apertures for the passage of electrons, an additional secondary electron emitting electrode 21 spaced in front of the secondary cathode and having apertures for the passage of electrons arranged out of line with the apertures in the secondary cathode, and means for applying to the electrodes positive potentials of either approximately the same magnitude or so that the additional electrode has a potential higher than that of the secondary cathode but substantially less than that applied to the next following additional electrode. Electrodes 14 and 21 may be connected together inside the tube as shown in Fig. 4 ; or connections to each electrode 21 may be brought out to tappings on the potential divider slightly more positive than the corresponding secondary cathode. In Fig. 3, each electrode 21 is connected to the second preceding electrode 14 through a series resistance 22. Each secondary cathode may have several additional electrodes. Dimensions and working voltages are given for the form shown in Fig. 4. Specifications 516,621 and 545,123 are referred to.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3088/41A GB547801A (en) | 1941-03-06 | 1941-03-06 | Improvements in or relating to electron multiplier apparatus |
| US398342A US2340407A (en) | 1941-03-06 | 1941-06-16 | Electron multiplier apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3088/41A GB547801A (en) | 1941-03-06 | 1941-03-06 | Improvements in or relating to electron multiplier apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB547801A true GB547801A (en) | 1942-09-11 |
Family
ID=9751728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3088/41A Expired GB547801A (en) | 1941-03-06 | 1941-03-06 | Improvements in or relating to electron multiplier apparatus |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2340407A (en) |
| GB (1) | GB547801A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE449722A (en) * | 1942-03-13 | |||
| US2432654A (en) * | 1943-12-02 | 1947-12-16 | Farnsworth Res Corp | Electron multiplier gain control |
-
1941
- 1941-03-06 GB GB3088/41A patent/GB547801A/en not_active Expired
- 1941-06-16 US US398342A patent/US2340407A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2340407A (en) | 1944-02-01 |
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