Electron beam exciter for use in chemical analysis in processing systems

The present invention is directed to a gas line electron beam exciter The electron beam exciter generally comprises a variable density electron source for generating a cloud of electrons in an electron chamber and a vanable energy electron extractor for accelerating electrons from the electron chamb...

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Bibliographic Details
Main Authors WHELAN MIKE, HARVEY KENNETH C, KUENY ANDREW WEEKS, THAMBAN P. L. STEPHAN, GOECKNER MATTHEW J, HOSCH JIMMY W
Format Patent
LanguageChinese
English
Published 28.09.2011
Subjects
BASIC ELECTRIC ELEMENTS
DEVICES USING STIMULATED EMISSION
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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Summary:The present invention is directed to a gas line electron beam exciter The electron beam exciter generally comprises a variable density electron source for generating a cloud of electrons in an electron chamber and a vanable energy electron extractor for accelerating electrons from the electron chamber as an electron beam and into an effluent stream for fluorescing species in the effluent The electron energy of the electron beam is vanably controlled by adjusting an electrical potential across the vanable energy electron extractor, which energizes the electrons through an extraction hole of the chamber and toward the extractor The excitation power applied to the electron source can be adjusted independently from the electron energy of the electron beam, thereby altenng the electron density of the electron beam without changing the energy level of the electrons of the electron beam.
Bibliography:Application Number: CN20098136544