JPS61140019A - 含浸形カソ−ド - Google Patents

含浸形カソ−ド

Info

Publication number
JPS61140019A
JPS61140019A JP59260702A JP26070284A JPS61140019A JP S61140019 A JPS61140019 A JP S61140019A JP 59260702 A JP59260702 A JP 59260702A JP 26070284 A JP26070284 A JP 26070284A JP S61140019 A JPS61140019 A JP S61140019A
Authority
JP
Japan
Prior art keywords
film
al2o3
onto
cathode
metal film
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
JP59260702A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0552617B2 (enrdf_load_stackoverflow
Inventor
Seiji Kumada
熊田　政治
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 JP59260702A priority Critical patent/JPS61140019A/ja
Publication of JPS61140019A publication Critical patent/JPS61140019A/ja
Publication of JPH0552617B2 publication Critical patent/JPH0552617B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode

Landscapes

  • Solid Thermionic Cathode (AREA)
JP59260702A 1984-12-12 1984-12-12 含浸形カソ−ド Granted JPS61140019A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59260702A JPS61140019A (ja) 1984-12-12 1984-12-12 含浸形カソ−ド

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59260702A JPS61140019A (ja) 1984-12-12 1984-12-12 含浸形カソ−ド

Publications (2)

Publication Number Publication Date
JPS61140019A true JPS61140019A (ja) 1986-06-27
JPH0552617B2 JPH0552617B2 (enrdf_load_stackoverflow) 1993-08-05

Family

ID=17351582

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59260702A Granted JPS61140019A (ja) 1984-12-12 1984-12-12 含浸形カソ−ド

Country Status (1)

Country Link
JP (1) JPS61140019A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2567853A (en) * 2017-10-26 2019-05-01 Isotopx Ltd An electron source

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2567853A (en) * 2017-10-26 2019-05-01 Isotopx Ltd An electron source
GB2567853B (en) * 2017-10-26 2020-07-29 Isotopx Ltd Gas-source mass spectrometer comprising an electron source
US11430627B2 (en) 2017-10-26 2022-08-30 Isotopx Ltd. Electron source
US11764026B2 (en) 2017-10-26 2023-09-19 Isotopx Ltd. Electron source

Also Published As

Publication number Publication date
JPH0552617B2 (enrdf_load_stackoverflow) 1993-08-05

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