JPS6476642A - Hollow cathode - Google Patents

Hollow cathode

Info

Publication number
JPS6476642A
JPS6476642A JP62230619A JP23061987A JPS6476642A JP S6476642 A JPS6476642 A JP S6476642A JP 62230619 A JP62230619 A JP 62230619A JP 23061987 A JP23061987 A JP 23061987A JP S6476642 A JPS6476642 A JP S6476642A
Authority
JP
Japan
Prior art keywords
cathode
arc
discharge
temperature
ions
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
JP62230619A
Other languages
Japanese (ja)
Inventor
Kanzou Yoshikawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62230619A priority Critical patent/JPS6476642A/en
Publication of JPS6476642A publication Critical patent/JPS6476642A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To improve the reliability by fitting an arc cathode electrically floatingly in relation to a cathode pipe so that the negative potential can be applied. CONSTITUTION:When the discharge-forming gas 9 is fed through a cathode pipe 3 at the rate of 10cc or more per minute, for example, and the high voltage of 1KV or more, for example, is applied across a cathode disk 4 and a keeper electrode 1, a glow discharge is generated across the cathode disk 4 and the keeper electrode 1. If the negative voltage of about 10-100V is applied to an arc cathode 6 at this time, ions generated during the glow discharge hit the surface of the arc cathode 6 to heat it. When the temperature of the arc cathode 6 rises, thermo-electrons are emitted from the arc cathode 6, these electrons ionize the discharge forming gas molecules to generate ions, these ions again hit the arc cathode 6 to raise the temperature further. The temperature of the cathode 6 continues to rise, the thermo-electron current continues to increase and is balanced at the preset current value of an arc driving power source, and the discharge is continued even after a negative electrode 11 connected to the cathode 6 is cut off.
JP62230619A 1987-09-14 1987-09-14 Hollow cathode Pending JPS6476642A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62230619A JPS6476642A (en) 1987-09-14 1987-09-14 Hollow cathode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62230619A JPS6476642A (en) 1987-09-14 1987-09-14 Hollow cathode

Publications (1)

Publication Number Publication Date
JPS6476642A true JPS6476642A (en) 1989-03-22

Family

ID=16910608

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62230619A Pending JPS6476642A (en) 1987-09-14 1987-09-14 Hollow cathode

Country Status (1)

Country Link
JP (1) JPS6476642A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200097262A (en) * 2017-12-12 2020-08-18 라파엘 어드벤스드 디펜스 시스템즈 리미티드. Apparatus and method for operating a heaterless hollow cathode, and electric space propulsion system using such cathode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200097262A (en) * 2017-12-12 2020-08-18 라파엘 어드벤스드 디펜스 시스템즈 리미티드. Apparatus and method for operating a heaterless hollow cathode, and electric space propulsion system using such cathode
JP2021513719A (en) * 2017-12-12 2021-05-27 ラファエル アドバンスド ディフェンス システムズ エルティーディー Devices and methods for operating heaterless hollow cathodes and electrical space propulsion systems that use the cathodes.

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