JPS53105360A - Electron gun - Google Patents

Electron gun

Info

Publication number
JPS53105360A
JPS53105360A JP2005977A JP2005977A JPS53105360A JP S53105360 A JPS53105360 A JP S53105360A JP 2005977 A JP2005977 A JP 2005977A JP 2005977 A JP2005977 A JP 2005977A JP S53105360 A JPS53105360 A JP S53105360A
Authority
JP
Japan
Prior art keywords
electron gun
electron
point source
make
tip
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
JP2005977A
Other languages
Japanese (ja)
Inventor
Tokuo Takahashi
Shojiro Tagata
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.)
Jeol Ltd
Original Assignee
Jeol Ltd
Nihon Denshi KK
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 Jeol Ltd, Nihon Denshi KK filed Critical Jeol Ltd
Priority to JP2005977A priority Critical patent/JPS53105360A/en
Publication of JPS53105360A publication Critical patent/JPS53105360A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electron Sources, Ion Sources (AREA)
  • Solid Thermionic Cathode (AREA)

Abstract

PURPOSE: To make the life expectancy of electron guns longer and to make suitable them for high accuracy, by increasing the temperature at the tip of point source through heating the point source itself of electron gun used for electron microscopes.
COPYRIGHT: (C)1978,JPO&Japio
JP2005977A 1977-02-25 1977-02-25 Electron gun Pending JPS53105360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005977A JPS53105360A (en) 1977-02-25 1977-02-25 Electron gun

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005977A JPS53105360A (en) 1977-02-25 1977-02-25 Electron gun

Publications (1)

Publication Number Publication Date
JPS53105360A true JPS53105360A (en) 1978-09-13

Family

ID=12016497

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005977A Pending JPS53105360A (en) 1977-02-25 1977-02-25 Electron gun

Country Status (1)

Country Link
JP (1) JPS53105360A (en)

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