GB489130A - Improvements in secondary emission electron multipliers - Google Patents
Improvements in secondary emission electron multipliersInfo
- Publication number
- GB489130A GB489130A GB1452537A GB1452537A GB489130A GB 489130 A GB489130 A GB 489130A GB 1452537 A GB1452537 A GB 1452537A GB 1452537 A GB1452537 A GB 1452537A GB 489130 A GB489130 A GB 489130A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- secondary emission
- emission electron
- electron multipliers
- leads
- 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
- H01J43/28—Vessels, e.g. wall of the tube; Windows; Screens; Suppressing undesired discharges or currents
Landscapes
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Abstract
489,130. Electron multipliers. GENERAL ELECTRIC CO., Ltd., and SIMMS, C. H. May 25, 1937, No. 14525. [Class 39 (i)] In a multi-stage secondary emission electron multiplier having a photoelectric cathode, a metallic shield maintained at or near cathode potential is interposed between that part of the cathode on which light falls and leads to other electrodes positive to it and near to it. The shield may be separate from or integral with the cathode and when the latter is of channel section, as described in Specification 478,262, the sides 3 being formed perpendicular to the bottom, the end 9 of the cathode is turned up as shown so that the bottom surface on which the light falls is shielded from the leads 6 to the more positive and succeeding electrodes 4, 5. Specification 469,283 also is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1452537A GB489130A (en) | 1937-05-25 | 1937-05-25 | Improvements in secondary emission electron multipliers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1452537A GB489130A (en) | 1937-05-25 | 1937-05-25 | Improvements in secondary emission electron multipliers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB489130A true GB489130A (en) | 1938-07-20 |
Family
ID=10042765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1452537A Expired GB489130A (en) | 1937-05-25 | 1937-05-25 | Improvements in secondary emission electron multipliers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB489130A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2855905A1 (en) * | 2003-06-05 | 2004-12-10 | Photonis Sas | Photomultiplier tube, has connecting pins formed on output wall that is not parallel to another wall which carries transparency window and cathode, where pins cross tight envelope, and path forming dynode receiving electrons |
-
1937
- 1937-05-25 GB GB1452537A patent/GB489130A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2855905A1 (en) * | 2003-06-05 | 2004-12-10 | Photonis Sas | Photomultiplier tube, has connecting pins formed on output wall that is not parallel to another wall which carries transparency window and cathode, where pins cross tight envelope, and path forming dynode receiving electrons |
| WO2004112080A2 (en) * | 2003-06-05 | 2004-12-23 | Photonis Sas | Small multichannel photomultiplier tube |
| WO2004112080A3 (en) * | 2003-06-05 | 2006-07-20 | Photonis Sas | Small multichannel photomultiplier tube |
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