JPS5469953A - Electron emission device - Google Patents
Electron emission deviceInfo
- Publication number
- JPS5469953A JPS5469953A JP13695877A JP13695877A JPS5469953A JP S5469953 A JPS5469953 A JP S5469953A JP 13695877 A JP13695877 A JP 13695877A JP 13695877 A JP13695877 A JP 13695877A JP S5469953 A JPS5469953 A JP S5469953A
- Authority
- JP
- Japan
- Prior art keywords
- laser
- photoelectric surface
- container
- constitution
- photoelectric
- 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.)
- Pending
Links
Landscapes
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
Abstract
PURPOSE: To prolong the life by using laser beams as the exciting method for photo electrons.
CONSTITUTION: Semiconductor laser 22 and optical lens 23 are contained in container 26, and photoelectric surface 24 is formed on the surface of the container 26. In other words, container 26 isolates laser 22 from photoelectric surface 24 to prevent the contamination of laser 22 by alkali. Accelerating electrode 25 is provided with beam aperture 27 shifted from the laser beam axis and on the surface of cover 21, external-light shielding film 28 is formed in order to prevent photo- electron excitation due to external light, and magnet 29 is arranged corresponding to the position between photoelectric surface 24 and accelerating electrode 25. In this constitution, a laser with good output efficiency or photoelectric surface with good radiation characteristics is selected within the range with no rise in temperature of the photoelectric surface, so that a cold cathode which has a low vacuum degree, large emission current and long life can be obtained in comparison with a conventional one.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13695877A JPS5469953A (en) | 1977-11-15 | 1977-11-15 | Electron emission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13695877A JPS5469953A (en) | 1977-11-15 | 1977-11-15 | Electron emission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5469953A true JPS5469953A (en) | 1979-06-05 |
Family
ID=15187469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13695877A Pending JPS5469953A (en) | 1977-11-15 | 1977-11-15 | Electron emission device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5469953A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2517470A1 (en) * | 1981-11-30 | 1983-06-03 | Thermo Electron Corp | LASER STIMULATED HIGH-DENSITY CURRENT ELECTRON GENERATOR AND METHOD OF MANUFACTURING SAME |
| EP0348611A2 (en) * | 1988-07-01 | 1990-01-03 | International Business Machines Corporation | Fibre optic photocathode |
| JP2006120582A (en) * | 2004-10-25 | 2006-05-11 | Hamamatsu Photonics Kk | Electron stream supply device and supply method |
-
1977
- 1977-11-15 JP JP13695877A patent/JPS5469953A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2517470A1 (en) * | 1981-11-30 | 1983-06-03 | Thermo Electron Corp | LASER STIMULATED HIGH-DENSITY CURRENT ELECTRON GENERATOR AND METHOD OF MANUFACTURING SAME |
| JPS58108639A (en) * | 1981-11-30 | 1983-06-28 | サ−モ・エレクトロン・コ−ポレ−シヨン | Laser exciting type high current density photoelectron generator and method of producing same |
| JPH03176953A (en) * | 1981-11-30 | 1991-07-31 | Thermo Electron Corp | Laser excitation form high current density type electron beam generator |
| EP0348611A2 (en) * | 1988-07-01 | 1990-01-03 | International Business Machines Corporation | Fibre optic photocathode |
| JP2006120582A (en) * | 2004-10-25 | 2006-05-11 | Hamamatsu Photonics Kk | Electron stream supply device and supply method |
| JP4606839B2 (en) * | 2004-10-25 | 2011-01-05 | 浜松ホトニクス株式会社 | Electron flow supply device and supply method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5568056A (en) | X-ray tube | |
| WO1997003453A3 (en) | Electron sources utilizing negative electron affinity photocathodes with ultra-small emission areas | |
| US2612610A (en) | Radiation detector | |
| JPS55129313A (en) | Light deflector | |
| JPS5469953A (en) | Electron emission device | |
| US3716747A (en) | Television camera tube utilizing light beam scanning | |
| Baum et al. | Negative electron affinity photocathodes as high-performance electron sources Part 2: Energy spectrum measurements | |
| Thomas et al. | Laser‐Triggered Avalanche‐Transistor Voltage Generator for a Picosecond Streak Camera | |
| GB2152282A (en) | Optical amplifier | |
| US5311044A (en) | Avalanche photomultiplier tube | |
| US3058022A (en) | Photoelectric generator | |
| US6069445A (en) | Having an electrical contact on an emission surface thereof | |
| GB987627A (en) | Improvements in or relating to thermo-electronic converters | |
| JPS53120393A (en) | Photo signal amplifier | |
| SU457406A1 (en) | Pulsed neutron generator | |
| US3069591A (en) | Single stage photomultiplier tube | |
| Scott | Photocathodes for use in an electron image projector | |
| JPS60180052A (en) | Photoelectron or secondary electron emission cathode | |
| JPS5324791A (en) | Semiconductor laser | |
| SU736212A1 (en) | Multi-chamber image brightness intensifier | |
| Majumdar | Dynamic Range Of Picosecond Image Converter Streak Cameras | |
| Belyaev et al. | Investigation of the spatial–temporal dependence of the radiation pattern from an ArF laser | |
| KAZARYAN | New laser microscope described(pulsed metal vapor lasers for light amplification) | |
| FR2260185A1 (en) | Vidicon camera tube target - has a transparent resistive layer on the exposed surface to give picture sharpness | |
| JPS5642946A (en) | Scanning type electron microscope device |