JPS5451368A - Electron gun - Google Patents

Electron gun

Info

Publication number
JPS5451368A
JPS5451368A JP11761777A JP11761777A JPS5451368A JP S5451368 A JPS5451368 A JP S5451368A JP 11761777 A JP11761777 A JP 11761777A JP 11761777 A JP11761777 A JP 11761777A JP S5451368 A JPS5451368 A JP S5451368A
Authority
JP
Japan
Prior art keywords
emission
anode
electron
coating
titanium
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
JP11761777A
Other languages
Japanese (ja)
Inventor
Yukitoshi Yoshida
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11761777A priority Critical patent/JPS5451368A/en
Publication of JPS5451368A publication Critical patent/JPS5451368A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: TO prevent sparking due to electron discharge, by forming an electron- emission preventive coating on a Wehnelt cylinder or anode.
CONSTITUTION: The impregnant substance of Ba or BaO of cathode 1 sticks to Wehnelt cylinder 3 or anode 5, which prevent the emission of thermions, so that Wehnelt cylinder 3 or anode 5 will be plated with coating 14 of titanium. Therefore, barium sticking onto titanium film 14 is removed from the surface diffused into the titanium coating, so that thermion emission and secondary-electron emission will be nearly eliminated
COPYRIGHT: (C)1979,JPO&Japio
JP11761777A 1977-09-29 1977-09-29 Electron gun Pending JPS5451368A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11761777A JPS5451368A (en) 1977-09-29 1977-09-29 Electron gun

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11761777A JPS5451368A (en) 1977-09-29 1977-09-29 Electron gun

Publications (1)

Publication Number Publication Date
JPS5451368A true JPS5451368A (en) 1979-04-23

Family

ID=14716180

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11761777A Pending JPS5451368A (en) 1977-09-29 1977-09-29 Electron gun

Country Status (1)

Country Link
JP (1) JPS5451368A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6443543U (en) * 1987-09-10 1989-03-15
JPH0371541U (en) * 1989-11-15 1991-07-19

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6443543U (en) * 1987-09-10 1989-03-15
JPH0371541U (en) * 1989-11-15 1991-07-19

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