JPS5249761A - Field emission electronic gun - Google Patents

Field emission electronic gun

Info

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
Application number
JP12529275A
Other languages
Japanese (ja)
Inventor
Yasushi Nakaizumi
Tadashi Otaka
Masao Tsuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12529275A priority Critical patent/JPS5249761A/en
Publication of JPS5249761A publication Critical patent/JPS5249761A/en
Pending legal-status Critical Current

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
JP12529275A 1975-10-20 1975-10-20 Field emission electronic gun Pending JPS5249761A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
JPS5230146A (en) Amplifier circuit
JPS51133700A (en) Process for storing the radioactive rare gas
JPS5249761A (en) Field emission electronic gun
JPS5252099A (en) Plasma ion source
JPS5239360A (en) Magnetron
JPS51117568A (en) Electron gun for use in electron microscope
JPS526076A (en) Manufacturing process of cathode ray tube
JPS5230277A (en) Fluorescent substance for low speed electron beam
JPS5222471A (en) Field radiation type electron gun
JPS51151062A (en) Electron tube
JPS52110565A (en) Anode structure of magnetron
JPS5216012A (en) Vacuum system
JPS537683A (en) Purification of pyridoxine
JPS5233714A (en) Thin film magnetic head
JPS5267569A (en) Fluorescent body slurry forming fluorescent face of colour receiving t ube
JPS51133699A (en) Process for storing the radioactive rare gas
JPS51151060A (en) Construction method of a magnetron anode constituted body
JPS5251861A (en) Field radiation type electronic gun
JPS51134553A (en) Field emission electron gun
JPS51142957A (en) Magnetron
JPS5229925A (en) Voltage step-up circuit
JPS51142956A (en) Field emission electron gun
JPS5239359A (en) Magnetron
JPS5346262A (en) Manufacture for magnetron
JPS51132500A (en) High dielectric composed substance