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(19)

(11)

2 343 584

(13)

(51)

IPC

H01J25/00(2006-01-01)

(21) (22)

Application

2007127362/09, 2007-07-17

(24)

Start date

2007-07-17

(22)

Actual filing date

2007-07-17

(45)

Published

2009-01-10

(72)

Inventor

Stepanov Nikolaj VladimirovichSelemir Viktor DmitrievichVoronin Vjacheslav VjacheslavovichAlekhin Boris Vasil'Evich

(73)

Holder

Rossijskaja Federatsija V Litse Federal'Nogo Agentstva Po Atomnoj EhnergiiFederal'Noe Gosudarstvennoe Unitarnoe Predprijatie Federal'Nyj Jadernyj Tsentr-Vserossijskij Nauchno-Issledovatel'Skij Institut Ehksperimental'Noj Fiziki" Fgup

SELF-SHARPENING POINT FIELD-EMISSION CATHODE FOR OPERATION IN TECHNICAL VACUUM Russian patent published in 2009 - IPC H01J25/00

Abstract RU 2343584 C1

FIELD: electricity.

SUBSTANCE: invention is attributed to electronic engineering and can be used in emission electronics, technology of surface treatment by cathode beams and electron microscopy. Cathode core is made as micropoint of high-melting atomising-resistant material and is sheeted with material having higher conductivity and lower resistance to atomising by residual gas ions than the core.

EFFECT: cathode assembly design simplification, increase in current density and durability.

2 dwg, 1 ex

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RU 2 343 584 C1

Authors

Stepanov Nikolaj Vladimirovich

Selemir Viktor Dmitrievich

Voronin Vjacheslav Vjacheslavovich

Alekhin Boris Vasil'Evich

Dates

2009-01-10—Published

2007-07-17—Filed