Published April 8, 1974 | Version v1
Patent Open

Thermionic emitter of lanthanum strontium vanadates

Creators

Description

A thermionic emitter for electron beam apparatus is described comprising a metallic, electrically conducting support structure and a shaped piece of electron emitting material mounted on and in electrical contact with the said support structure, said material being the compound lanthanum strontium vanadate having the formula La/sub (1-x)/Sr/sub x/ VO3 where x is the fraction of strontium (Sr) incorporated in the La VO3 and with x lying between 0.01 and 0.4

Availability note (English)

MF available from INIS under the Report Number.

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Additional details

Additional titles

Augmented title (English)
Patent; electron source

Publishing Information

Imprint Pagination
v p.
IPC:
Int. Cl.H01J1/14; H01J19/06; H01B1/06.
IPC
Int. Cl.H01J1/14; H01J19/06; H01B1/06.
Patent number
US patent document 3,944,866

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
7258327
Subject category
S74: ATOMIC AND MOLECULAR PHYSICS;
Descriptors DEI
ELECTRON SOURCES; FABRICATION; LANTHANUM COMPOUNDS; STRONTIUM COMPOUNDS; THERMIONIC EMISSION; VANADATES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; EMISSION; OXYGEN COMPOUNDS; PARTICLE SOURCES; RADIATION SOURCES; RARE EARTH COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; VANADIUM COMPOUNDS