Title:
CATHODE MEMBER FOR ELECTRON BEAM GENERATION AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2021/044951
Kind Code:
A1
Abstract:
A cathode member for electron beam generation according to the present disclosure is configured such that 95% by area or more thereof is occupied by a single phase or two phases of a compound that is composed of iridium and cerium, while having a total content of one or more minor components, which are selected from among oxides of iridium and/or cerium, of 5% by area or less.
Inventors:
KOGA KENJI
TAKAGI TOSHIAKI
KUDO FUMIAKI
KUSAMICHI TATSUHIKO
TAKAGI TOSHIAKI
KUDO FUMIAKI
KUSAMICHI TATSUHIKO
Application Number:
PCT/JP2020/032507
Publication Date:
March 11, 2021
Filing Date:
August 28, 2020
Export Citation:
Assignee:
KOBELCO RES INSTITUTE INC (JP)
International Classes:
B22F3/14; C22C28/00; H01J1/146; H01J1/304
Domestic Patent References:
| WO2018016286A1 | 2018-01-25 |
Foreign References:
| JP2015198034A | 2015-11-09 | |||
| JPH08255564A | 1996-10-01 | |||
| JP2002260520A | 2002-09-13 | |||
| JPH08171852A | 1996-07-02 | |||
| JP2002527855A | 2002-08-27 | |||
| US5773922A | 1998-06-30 | |||
| JP2527855A | ||||
| JP2002260520A | 2002-09-13 | |||
| JP2015198034A | 2015-11-09 | |||
| JP2019159587A | 2019-09-19 |
Other References:
SATOH, DAISUKE; YOSHIDA, MITSUHIRO; HAYASHIZAKI, NORIYOSU; NATSUI, TAKUYA; TANAKA, ISAO: "Development of new photocathode materials and its quantum efficiency improvement for high brightness electron gun", PROCEEDINGS OF THE 10TH ANNUAL MEETING OF PARTICLE ACCELERATOR SOCIETY OF JAPAN; NAGOYA, JAPAN; AUGUST 3-5, 2013, 31 July 2013 (2013-07-31) - 5 August 2013 (2013-08-05), JP, pages 540 - 543, XP009534268
G. KUZNETSOV: "High temperature cathodes for high current density", NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH A340, 1994, pages 204 - 208
T. NATSUM. YOSHIDA: "High Charge Low Emittance RF Gun for SUPERKEKB", PROC. IPAC, 2012, pages 1533 - 1535
G. I. KUZNETSOV: "IrCe Cathode For EBIS", J. PHYSICS: CONFERENCE SERIES, vol. 2, 2004, pages 35 - 41
S. E. ROZHKOV0. K. KUKTASHEVA. A. GUGNIN: "Technical Characteristics of Thermionic Emitters Based on Alloy Ir with La, Ce, Pr", TECHNIQUE, SER. 16, ENERATORNYE, MODULATORNYE I RENTGENOVSKIYE PRIBORY, vol. 2, 1969, pages 81
D. SATOH: "IMPROVEMENT OF PHOTOEMISSION PROPERTIES OF IRIDIUM CERIUM COMPOUND FOR SUPERKEKB INJECTOR LINAC", PROCEEDINGS OF PASJ2017, WEP106, 2017
H. SUGAWARA ET AL.: "Single crystal growth and electrical properties of CeRh and CeIr", J. PHYS. SOC. JPN., vol. 63, 1994, pages 1502 - 1507
G. KUZNETSOV: "High temperature cathodes for high current density", NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH A340, 1994, pages 204 - 208
T. NATSUM. YOSHIDA: "High Charge Low Emittance RF Gun for SUPERKEKB", PROC. IPAC, 2012, pages 1533 - 1535
G. I. KUZNETSOV: "IrCe Cathode For EBIS", J. PHYSICS: CONFERENCE SERIES, vol. 2, 2004, pages 35 - 41
S. E. ROZHKOV0. K. KUKTASHEVA. A. GUGNIN: "Technical Characteristics of Thermionic Emitters Based on Alloy Ir with La, Ce, Pr", TECHNIQUE, SER. 16, ENERATORNYE, MODULATORNYE I RENTGENOVSKIYE PRIBORY, vol. 2, 1969, pages 81
D. SATOH: "IMPROVEMENT OF PHOTOEMISSION PROPERTIES OF IRIDIUM CERIUM COMPOUND FOR SUPERKEKB INJECTOR LINAC", PROCEEDINGS OF PASJ2017, WEP106, 2017
H. SUGAWARA ET AL.: "Single crystal growth and electrical properties of CeRh and CeIr", J. PHYS. SOC. JPN., vol. 63, 1994, pages 1502 - 1507
Attorney, Agent or Firm:
YAMAO, Norihito (JP)
Download PDF: