Title:
耐熱電子放出源
Document Type and Number:
Japanese Patent JP5586013
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To solve a problem occurring in aspect of durability and the possibility of a long period use, resulting from damage and deterioration caused by a high temperature chemical reaction on a junction face between a rare-earth hexaboride single crystal nanofiber and a heat-resistant support metal needle, which is generated in a high temperature use process, when joining the rare-earth hexaboride single crystal nanofiber of lanthanum hexaboride or the like to the heat-resistant metal support needle, to be used as a hot-cathode electron emission source.SOLUTION: This hot-cathode electron emission source is constituted to form at least a junction portion of the heat-resistant metal support needle contacting with the rare-earth hexaboride single crystal nanofiber, of a heat resistant material not reacting chemically with the nanofiber even at a high temperature.
Inventors:
Tang 捷
Tension はん
秦 禄昌
Norio Shintani
Tension はん
秦 禄昌
Norio Shintani
Application Number:
JP2010113904A
Publication Date:
September 10, 2014
Filing Date:
May 18, 2010
Export Citation:
Assignee:
Independent administrative institution National Institute for Materials Science
International Classes:
H01J1/14; H01J1/15; H01J1/16; H01J37/06