JPS585268U - Directly heated thermionic emission cathode - Google Patents

Directly heated thermionic emission cathode

Info

Publication number
JPS585268U
JPS585268U JP8521782U JP8521782U JPS585268U JP S585268 U JPS585268 U JP S585268U JP 8521782 U JP8521782 U JP 8521782U JP 8521782 U JP8521782 U JP 8521782U JP S585268 U JPS585268 U JP S585268U
Authority
JP
Japan
Prior art keywords
directly heated
emission cathode
thermionic emission
melting point
heated thermionic
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
JP8521782U
Other languages
Japanese (ja)
Inventor
寺崎　隆一
徹也 和田
秀雄 平田
Original Assignee
電気化学工業株式会社
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 電気化学工業株式会社 filed Critical 電気化学工業株式会社
Priority to JP8521782U priority Critical patent/JPS585268U/en
Publication of JPS585268U publication Critical patent/JPS585268U/en
Pending legal-status Critical Current

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  • Solid Thermionic Cathode (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案の実施例を示すものであって、第１図は陰
極の斜視図、第２図はチップの断面図、第３図ａ、　　
ｂはチップに高融点金属線を固定した状態を示す説明図
である。 符号、１・・・支持台、２・・・電極、３・・・蕎融点
金属線、４・・・陰極チップ、５・・・陰極チップのみ
ぞ、６・・・陰極チップの先端部。The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of the cathode, Fig. 2 is a cross-sectional view of the chip, Fig. 3 a,
b is an explanatory diagram showing a state in which a high melting point metal wire is fixed to a chip. Symbols: 1... Support base, 2... Electrode, 3... Melting point metal wire, 4... Cathode chip, 5... Cathode chip groove, 6... Distal end of cathode chip.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 六硼化カルシウム型構造を有する化合物からなる熱電子
放射陰極チップの側面＆立設けたみぞに、融点１９００
°Ｃ以上の高融点金属の表面が炭化物、硼化物、窒化物
から選ばれた１種である、線状体を取り付け、これを絶
縁性セラミック支持台に固定したことを特徴とする直接
加熱型熱電子放射陰極。The side and vertical grooves of the thermionic emitting cathode chip, which is made of a compound with a calcium hexaboride type structure, have a melting point of 1900.
A direct heating type characterized by attaching a linear body whose surface is made of a metal with a high melting point above °C and one selected from carbides, borides, and nitrides, and fixing this to an insulating ceramic support. Thermionic emitting cathode.
JP8521782U 1982-06-08 1982-06-08 Directly heated thermionic emission cathode Pending JPS585268U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8521782U JPS585268U (en) 1982-06-08 1982-06-08 Directly heated thermionic emission cathode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8521782U JPS585268U (en) 1982-06-08 1982-06-08 Directly heated thermionic emission cathode

Publications (1)

Publication Number Publication Date
JPS585268U true JPS585268U (en) 1983-01-13

Family

ID=29880512

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8521782U Pending JPS585268U (en) 1982-06-08 1982-06-08 Directly heated thermionic emission cathode

Country Status (1)

Country Link
JP (1) JPS585268U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019204721A (en) * 2018-05-24 2019-11-28 岳石電気株式会社 Electron beam source in mass spectrometer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019204721A (en) * 2018-05-24 2019-11-28 岳石電気株式会社 Electron beam source in mass spectrometer

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