Title:
HOLLOW CATHODE
Document Type and Number:
Japanese Patent JP2023075698
Kind Code:
A
Abstract:
To provide a hollow cathode that has high heat insulation property even in an axial direction and is less likely to deteriorate over time.SOLUTION: A hollow cathode includes: a cathode tube; a heater provided on an inside or outside of the cathode tube; a thermal shield enclosing the cathode tube and the heater; and a keeper electrode enclosing the thermal shield. The thermal shield includes: an inner cylinder made of a ceramic fiber-molded body including a ceramic coating at the surface thereof; and an outer cylinder made of a metallic foil.SELECTED DRAWING: Figure 1
Inventors:
CHO SHINATORA
MATSUNAGA YOSHIKI
WATANABE HIROKI
NAKAMURA SHUICHI
TOYONAGA SHINJI
HIGASHIMATSU NAOYA
ITO TOSHIKI
MATSUNAGA YOSHIKI
WATANABE HIROKI
NAKAMURA SHUICHI
TOYONAGA SHINJI
HIGASHIMATSU NAOYA
ITO TOSHIKI
Application Number:
JP2021188764A
Publication Date:
May 31, 2023
Filing Date:
November 19, 2021
Export Citation:
Assignee:
NAT RES & DEVELOPMENT AGENCY JAPAN AEROSPACE EXPLORATION AGENCY
NETS KK
IBIDEN CO LTD
NETS KK
IBIDEN CO LTD
International Classes:
B64G1/40; F03H1/00
Attorney, Agent or Firm:
Hidekazu Miyoshi
Shunichi Takahashi
Masakazu Ito
Toshio Takamatsu
Shunichi Takahashi
Masakazu Ito
Toshio Takamatsu