Title:
HIGH EFFICIENCY HOLLOW CATHODE AND CATHODE SYSTEM APPLYING SAME
Document Type and Number:
WIPO Patent Application WO/2015/130050
Kind Code:
A1
Abstract:
The present invention relates to a high efficiency hollow cathode and a cathode system applying the same, and comprises: a tube comprising at least two refractory metal parts; a gas providing unit and a gas outlet which are respectively formed at the distal ends of the tube; and an insert mounted inside the tube. According to the present invention, since the present invention constitutes a hollow cathode using more than two substances, the present invention can not only enhance thermal stability, lifespan and efficiency, but also can reduce costs accordingly.
Inventors:
CHOE WONHO (KR)
LIM YOUBONG (KR)
KIM HOLAK (KR)
PARK JOOYOUNG (KR)
SEON JONGHO (KR)
LIM YOUBONG (KR)
KIM HOLAK (KR)
PARK JOOYOUNG (KR)
SEON JONGHO (KR)
Application Number:
PCT/KR2015/001685
Publication Date:
September 03, 2015
Filing Date:
February 23, 2015
Export Citation:
Assignee:
KOREA ADVANCED INST SCI & TECH (KR)
International Classes:
H01J23/04
Foreign References:
| US20070222358A1 | 2007-09-27 | |||
| US8143788B2 | 2012-03-27 | |||
| US20040000853A1 | 2004-01-01 | |||
| JP2004169606A | 2004-06-17 | |||
| JP2011074887A | 2011-04-14 |
Other References:
ANITA SENGUPTA: "Destructive Physical Analysis of Hollow Cathodes from the Deep Space 1 Flight Spare Ion Engine 30,000 Hr Life Test", 29TH INTERNATIONAL ELECTRIC PROPULSION CONFERENCE, IEPC-2005-026, 4 November 2005 (2005-11-04), pages 1 - 17, XP055220999
Attorney, Agent or Firm:
LEE, PYUNG-WOO (KR)
이평우 (KR)
이평우 (KR)
Download PDF: