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JPS5588233A - Hexaboride single crystal cathode - Google Patents

Hexaboride single crystal cathode

Info

Publication number
JPS5588233A
JPS5588233A JP16204478A JP16204478A JPS5588233A JP S5588233 A JPS5588233 A JP S5588233A JP 16204478 A JP16204478 A JP 16204478A JP 16204478 A JP16204478 A JP 16204478A JP S5588233 A JPS5588233 A JP S5588233A
Authority
JP
Japan
Prior art keywords
cathode
single crystal
head
lab
crystal
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.)
Granted
Application number
JP16204478A
Other languages
Japanese (ja)
Other versions
JPS6315693B2 (en
Inventor
Ryuichi Shimizu
Hideo Hiraoka
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.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo 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 Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to JP16204478A priority Critical patent/JPS5588233A/en
Publication of JPS5588233A publication Critical patent/JPS5588233A/en
Publication of JPS6315693B2 publication Critical patent/JPS6315693B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Solid Thermionic Cathode (AREA)

Abstract

PURPOSE: To obtain a high brightness electron beam by using a single crystal cathode with specific crystal surfaces whose work function is small.
CONSTITUTION: The head 22 of the cross-sectionally square base section 2 in the cathode chip 21 of the LaB6 single crystal forms a conical trapezoid with a linear oblique wall. The tip surface section 3 of the head 22 is cut so as to consist of only the specific crystal surface selected from the crystal surfaces whose axial direction is any one of the LaB6 single crystals (100)(110) and (111). The cathode head mentioned above can have a concave or convex curved surface, but in general, it should be formed linearly.
COPYRIGHT: (C)1980,JPO&Japio
JP16204478A 1978-12-26 1978-12-26 Hexaboride single crystal cathode Granted JPS5588233A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16204478A JPS5588233A (en) 1978-12-26 1978-12-26 Hexaboride single crystal cathode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16204478A JPS5588233A (en) 1978-12-26 1978-12-26 Hexaboride single crystal cathode

Publications (2)

Publication Number Publication Date
JPS5588233A true JPS5588233A (en) 1980-07-03
JPS6315693B2 JPS6315693B2 (en) 1988-04-06

Family

ID=15747016

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16204478A Granted JPS5588233A (en) 1978-12-26 1978-12-26 Hexaboride single crystal cathode

Country Status (1)

Country Link
JP (1) JPS5588233A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5682539A (en) * 1979-12-07 1981-07-06 Toshiba Corp Electron gun
JPS5760639A (en) * 1980-09-26 1982-04-12 Denki Kagaku Kogyo Kk Heat megative electrode consisting of single crystal of hexaboromide
JPS5796437A (en) * 1980-12-09 1982-06-15 Denki Kagaku Kogyo Kk Thermion emission cathode
JPS57134835A (en) * 1981-02-12 1982-08-20 Fujitsu Ltd Thermion emission cathode
US4346325A (en) * 1979-03-31 1982-08-24 Vlsi Technology Research Association Electron gun
JPS58186126A (en) * 1982-04-23 1983-10-31 Denki Kagaku Kogyo Kk Thermal electron emitting cathode chip
US4468586A (en) * 1981-05-26 1984-08-28 International Business Machines Corporation Shaped electron emission from single crystal lanthanum hexaboride with intensity distribution
JPH0619959B2 (en) * 1983-06-15 1994-03-16 アメリカン テレフオン アンド テレグラフ カムパニ− Electron emission system
WO2010032772A1 (en) * 2008-09-18 2010-03-25 国立大学法人東北大学 Magnetron, magnetron cathode body manufacturing method, and cathode body
JP2010086948A (en) * 2008-09-03 2010-04-15 Canon Inc Electron emission element and image display panel using the same, image display and information display
JP2015518245A (en) * 2012-04-13 2015-06-25 ジェンシン イェン Electrode material with low work function and high chemical stability

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346325A (en) * 1979-03-31 1982-08-24 Vlsi Technology Research Association Electron gun
JPH0131256B2 (en) * 1979-12-07 1989-06-23 Tokyo Shibaura Electric Co
JPS5682539A (en) * 1979-12-07 1981-07-06 Toshiba Corp Electron gun
JPS5760639A (en) * 1980-09-26 1982-04-12 Denki Kagaku Kogyo Kk Heat megative electrode consisting of single crystal of hexaboromide
JPS5796437A (en) * 1980-12-09 1982-06-15 Denki Kagaku Kogyo Kk Thermion emission cathode
JPH0311054B2 (en) * 1980-12-09 1991-02-15 Denki Kagaku Kogyo Kk
JPS57134835A (en) * 1981-02-12 1982-08-20 Fujitsu Ltd Thermion emission cathode
US4468586A (en) * 1981-05-26 1984-08-28 International Business Machines Corporation Shaped electron emission from single crystal lanthanum hexaboride with intensity distribution
JPS58186126A (en) * 1982-04-23 1983-10-31 Denki Kagaku Kogyo Kk Thermal electron emitting cathode chip
JPH0619959B2 (en) * 1983-06-15 1994-03-16 アメリカン テレフオン アンド テレグラフ カムパニ− Electron emission system
JP2010086948A (en) * 2008-09-03 2010-04-15 Canon Inc Electron emission element and image display panel using the same, image display and information display
WO2010032772A1 (en) * 2008-09-18 2010-03-25 国立大学法人東北大学 Magnetron, magnetron cathode body manufacturing method, and cathode body
JP2010073456A (en) * 2008-09-18 2010-04-02 Tohoku Univ Magnetron
JP2015518245A (en) * 2012-04-13 2015-06-25 ジェンシン イェン Electrode material with low work function and high chemical stability

Also Published As

Publication number Publication date
JPS6315693B2 (en) 1988-04-06

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