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1. (WO2010123007) COLD-CATHODE FIELD-EMISSION ELECTRON SOURCE INCLUDING RARE-EARTH HEXABORIDE

Pub. No.:    WO/2010/123007    International Application No.:    PCT/JP2010/057018
Publication Date: Fri Oct 29 01:59:59 CEST 2010 International Filing Date: Wed Apr 21 01:59:59 CEST 2010
IPC: H01J 1/304
H01J 37/06
Applicants: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
独立行政法人物質・材料研究機構
TANG Jie
唐 捷
ZHANG Han
張 ▲はん▼
QIN Luchang
秦 禄昌
SHINYA Norio
新谷 紀雄
Inventors: TANG Jie
唐 捷
ZHANG Han
張 ▲はん▼
QIN Luchang
秦 禄昌
SHINYA Norio
新谷 紀雄
Title: COLD-CATHODE FIELD-EMISSION ELECTRON SOURCE INCLUDING RARE-EARTH HEXABORIDE
Abstract:
A cold-cathode field-emission electron source to which a rare-earth hexaboride has been applied and which is prevented from being damaged or deteriorated by chemical reactions, has excellent durability, and can be used for long. The cold-cathode field-emission electron source emits electrons by means of a high electric field, and is characterized in that a single-crystal nanofiber of a rare-earth hexaboride has been attached to the surface of an electron-source support needle. The cold-cathode field-emission electron source is further characterized in that the electron-source support needle is constituted of a material which undergoes no chemical reaction at the connecting section between the electron-source support needle and the single-crystal nanofiber of a rare-earth hexaboride even when the cold-cathode field-emission electron source heats up to a high temperature.