GB515264A - Improvements in or relating to electron multipliers - Google Patents
Improvements in or relating to electron multipliersInfo
- Publication number
- GB515264A GB515264A GB1587638A GB1587638A GB515264A GB 515264 A GB515264 A GB 515264A GB 1587638 A GB1587638 A GB 1587638A GB 1587638 A GB1587638 A GB 1587638A GB 515264 A GB515264 A GB 515264A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- spacings
- focussed
- electrodes
- account
- 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
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
- H01J31/506—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output tubes using secondary emission effect
Landscapes
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Abstract
515,264. Image intensifiers. LUBSZYNSKI, H. G. May 27, 1938, No. 15876. [Class 39 (i)] In an image intensifier using secondaryemitting grids as described in Specification 457,493, to prevent blurring of the amplified image the strength of the magnetic field, the potential applied to the electrodes and their spacings are co-related so that any primary electrons from the photo cathode P passing through the mesh of grid G<1> are focussed on to the grid G<2> after describing an integral number of revolutions ; any secondaries from the grid G<1> passing through the grid G<2> are similarly focussed on the grid G<3> and so on. Formulae given relating the distance between the electrodes to the applied voltages and magnetic field may take into account the emission energies of the secondary electrons. The multiplier may be designed with some spacings obtained by formulae ignoring these energies and -some spacings taking them into account.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1587638A GB515264A (en) | 1938-05-27 | 1938-05-27 | Improvements in or relating to electron multipliers |
| FR874536D FR874536A (en) | 1938-05-27 | 1939-05-25 | Improvements to electronic multipliers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1587638A GB515264A (en) | 1938-05-27 | 1938-05-27 | Improvements in or relating to electron multipliers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB515264A true GB515264A (en) | 1939-11-30 |
Family
ID=10067109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1587638A Expired GB515264A (en) | 1938-05-27 | 1938-05-27 | Improvements in or relating to electron multipliers |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR874536A (en) |
| GB (1) | GB515264A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19942941A1 (en) * | 1999-09-08 | 2001-04-05 | Siemens Ag | Signal amplifier of a readout device for storage phosphor plates |
-
1938
- 1938-05-27 GB GB1587638A patent/GB515264A/en not_active Expired
-
1939
- 1939-05-25 FR FR874536D patent/FR874536A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19942941A1 (en) * | 1999-09-08 | 2001-04-05 | Siemens Ag | Signal amplifier of a readout device for storage phosphor plates |
Also Published As
| Publication number | Publication date |
|---|---|
| FR874536A (en) | 1942-08-10 |
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