GB1470162A - Electron multiplying arrangements - Google Patents
Electron multiplying arrangementsInfo
- Publication number
- GB1470162A GB1470162A GB974773A GB974773A GB1470162A GB 1470162 A GB1470162 A GB 1470162A GB 974773 A GB974773 A GB 974773A GB 974773 A GB974773 A GB 974773A GB 1470162 A GB1470162 A GB 1470162A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plates
- electron
- electrons
- elements
- channels
- 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
- H01J43/06—Electrode arrangements
- H01J43/18—Electrode arrangements using essentially more than one dynode
- H01J43/20—Dynodes consisting of sheet material, e.g. plane, bent
Landscapes
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
- Electron Tubes For Measurement (AREA)
Abstract
1470162 Electron multipliers; electron beam apparatus EMI Ltd 7 Feb 1974 [27 Feb 1973] 9747/73 Heading H1D An electron multiplier has a plurality of parallel plates slit to form parallel elements, alternate ones of which are twisted out of the plane of the plates so as to be perpendicular thereto, the twisted elements in successive plates being- staggered to form separate zig-zag channels. Fig. 1 also includes photocathode 2, transparent electrode 3, electron collecting electrodes 4 and focusing electrode 15 to direct electrons into respective channels. Plates 15 are electrically-conductive, secondary emissive material and may be Be-Cu or Ag-Mg alloys. The lower webs (11), Fig. 2, not shown), of each plate have holes (12), (13), (14), through which insulating support pillars (not shown) are inserted and are secured at either end of the envelope. The upper webs are similarly constructed. Plates 5 may all be formed from a single sheet. The construction ensures secondary electrons are focused at each stage, strike at large angles of incidence, and that light and ion feedback is negligible. Fig. 3 (not shown) includes fibre optic faceplate (16), photocathode (2), support (18) for bundles (17) of fibre optic elements for conducting light from an X-ray machine, and apertured mask (19) whose apertures correspond to the multiplying channels. Multiplication may be of electrons from sources other than photo-emitters.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB974773A GB1470162A (en) | 1973-02-27 | 1973-02-27 | Electron multiplying arrangements |
DE2407424A DE2407424C3 (en) | 1973-02-27 | 1974-02-12 | Electron multiplier |
US444370A US3872337A (en) | 1973-02-27 | 1974-02-21 | Electron multiplier formed by twisting fingers in parallel plates |
FR7406328A FR2219524B1 (en) | 1973-02-27 | 1974-02-25 | |
JP49022722A JPS5026467A (en) | 1973-02-27 | 1974-02-26 | |
NL7402680A NL7402680A (en) | 1973-02-27 | 1974-02-27 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB974773A GB1470162A (en) | 1973-02-27 | 1973-02-27 | Electron multiplying arrangements |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1470162A true GB1470162A (en) | 1977-04-14 |
Family
ID=9877997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB974773A Expired GB1470162A (en) | 1973-02-27 | 1973-02-27 | Electron multiplying arrangements |
Country Status (6)
Country | Link |
---|---|
US (1) | US3872337A (en) |
JP (1) | JPS5026467A (en) |
DE (1) | DE2407424C3 (en) |
FR (1) | FR2219524B1 (en) |
GB (1) | GB1470162A (en) |
NL (1) | NL7402680A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0001483A1 (en) * | 1977-10-12 | 1979-04-18 | EMI Limited | A multichannel electron multiplier arrangement |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2611706C2 (en) * | 1975-02-21 | 1984-09-27 | Emi Ltd., Hayes | Computer tomograph |
FR2445018A1 (en) * | 1978-12-22 | 1980-07-18 | Anvar | ELECTRON MULTIPLIER TUBE WITH AXIAL MAGNETIC FIELD |
US4306171A (en) * | 1979-08-13 | 1981-12-15 | Rca Corporation | Focusing structure for photomultiplier tubes |
JP4231123B2 (en) * | 1998-06-15 | 2009-02-25 | 浜松ホトニクス株式会社 | Electron tubes and photomultiplier tubes |
DE102013012609B4 (en) * | 2013-07-26 | 2024-06-27 | Carl Zeiss Microscopy Gmbh | Optoelectronic detector, especially for high-resolution light scanning microscopes and light scanning microscope |
JP6695387B2 (en) * | 2018-06-06 | 2020-05-20 | 浜松ホトニクス株式会社 | First stage dynode and photomultiplier tube |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2160797A (en) * | 1936-11-20 | 1939-05-30 | Bell Telephone Labor Inc | Electron discharge apparatus |
US2443547A (en) * | 1945-08-21 | 1948-06-15 | Rca Corp | Dynode |
GB976619A (en) * | 1960-03-05 | 1964-12-02 | Emi Ltd | Improvements in or relating to photo-emissive devices |
US3392296A (en) * | 1965-08-27 | 1968-07-09 | Wagner Electric Corp | Electron multiplier amplifier discharge device |
-
1973
- 1973-02-27 GB GB974773A patent/GB1470162A/en not_active Expired
-
1974
- 1974-02-12 DE DE2407424A patent/DE2407424C3/en not_active Expired
- 1974-02-21 US US444370A patent/US3872337A/en not_active Expired - Lifetime
- 1974-02-25 FR FR7406328A patent/FR2219524B1/fr not_active Expired
- 1974-02-26 JP JP49022722A patent/JPS5026467A/ja active Pending
- 1974-02-27 NL NL7402680A patent/NL7402680A/xx not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0001483A1 (en) * | 1977-10-12 | 1979-04-18 | EMI Limited | A multichannel electron multiplier arrangement |
Also Published As
Publication number | Publication date |
---|---|
DE2407424C3 (en) | 1979-06-13 |
DE2407424A1 (en) | 1974-08-29 |
FR2219524B1 (en) | 1978-09-15 |
DE2407424B2 (en) | 1978-10-19 |
JPS5026467A (en) | 1975-03-19 |
US3872337A (en) | 1975-03-18 |
FR2219524A1 (en) | 1974-09-20 |
NL7402680A (en) | 1974-08-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2236041A (en) | Electron discharge device | |
ES457065A1 (en) | Flat display device with beam guide | |
MX3131E (en) | IMPROVED ELECTRONIC CANNON OF CATHODIC RAY TUBE | |
GB819217A (en) | Improvements in or relating to photo-electron image multipliers | |
ES450785A1 (en) | Flat cathode ray tube | |
GB1470162A (en) | Electron multiplying arrangements | |
US4103205A (en) | Flat display device with beam guide | |
ATE26504T1 (en) | FLAT ELECTRON BEAM TUBE USING A GAS DISCHARGE AS SOURCE OF ELECTRONS. | |
GB808292A (en) | Electronic tube structure | |
US4980604A (en) | Sheet-type dynode electron multiplier and photomultiplier tube comprising such dynodes | |
GB1588084A (en) | Fiat display device with beam guide | |
GB1534795A (en) | Device for localizing light phenomena | |
US2200722A (en) | Electron discharge device | |
ES473292A1 (en) | Electron gun assembly for cathode ray tubes and method of assembling the same | |
GB553131A (en) | Improvements in cathode ray tubes | |
US2231682A (en) | Electron multiplier | |
US4099087A (en) | Guided beam flat display device with focusing guide assembly mounting means | |
US2245614A (en) | Electron discharge device | |
GB846108A (en) | Improvements in or relating to radiation detectors | |
US2824253A (en) | Electron multiplier | |
US3229142A (en) | Wide band multichannel electron multiplier having improved path shielding and gain characteristics | |
GB729127A (en) | Improvements in or relating to cathode-ray tubes and apparatus embodying cathode-raytubes | |
EP0001483A1 (en) | A multichannel electron multiplier arrangement | |
US3444414A (en) | Photomultiplier | |
US2759118A (en) | Radiation detectors |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |