JPS5249761A - Field emission electronic gun - Google Patents
Field emission electronic gunInfo
- Publication number
- JPS5249761A JPS5249761A JP12529275A JP12529275A JPS5249761A JP S5249761 A JPS5249761 A JP S5249761A JP 12529275 A JP12529275 A JP 12529275A JP 12529275 A JP12529275 A JP 12529275A JP S5249761 A JPS5249761 A JP S5249761A
- Authority
- JP
- Japan
- Prior art keywords
- electronic gun
- field emission
- emission electronic
- chamber
- gun chamber
- 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
- Electron Sources, Ion Sources (AREA)
Abstract
PURPOSE: Thecylinder of magnetic material is moved within electronic gun chamber in order to secure a space between the chamber andelection line body. Thus, high-efficiency auxiliary exhaustion is ensured for the electronic gun chamber.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12529275A JPS5249761A (en) | 1975-10-20 | 1975-10-20 | Field emission electronic gun |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12529275A JPS5249761A (en) | 1975-10-20 | 1975-10-20 | Field emission electronic gun |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5249761A true JPS5249761A (en) | 1977-04-21 |
Family
ID=14906458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12529275A Pending JPS5249761A (en) | 1975-10-20 | 1975-10-20 | Field emission electronic gun |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5249761A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4833362A (en) * | 1988-04-19 | 1989-05-23 | Orchid One | Encapsulated high brightness electron beam source and system |
US5150001A (en) * | 1990-04-10 | 1992-09-22 | Orchid One Corporation | Field emission electron gun and method having complementary passive and active vacuum pumping |
-
1975
- 1975-10-20 JP JP12529275A patent/JPS5249761A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4833362A (en) * | 1988-04-19 | 1989-05-23 | Orchid One | Encapsulated high brightness electron beam source and system |
US5150001A (en) * | 1990-04-10 | 1992-09-22 | Orchid One Corporation | Field emission electron gun and method having complementary passive and active vacuum pumping |
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