Proportional counter device for detecting electronegative species in an air sample

Patent · Fri Dec 31 23:00:00 EST 1993

OSTI ID:869183

Allman, Steve L ^[1]; Chen, Fang C ^[1]; Chen, Chung-Hsuan ^[1]

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1. Knoxville, TN

Apparatus for detecting an electronegative species comprises an analysis chamber, an inlet communicating with the analysis chamber for admitting a sample containing the electronegative species and an ionizable component, a radioactive source within the analysis chamber for emitting radioactive energy for ionizing a component of the sample, a proportional electron detector within the analysis chamber for detecting electrons emitted from the ionized component, and a circuit for measuring the electrons and determining the presence of the electronegative species by detecting a reduction in the number of available electrons due to capture of electrons by the electronegative species.

• Research Organization: LOCKHEED MARTIN ENRGY SYST INC
• DOE Contract Number: AC05-84OR21400
• Assignee: Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
• Patent Number(s): US 5293130
• OSTI ID: 869183
• Country of Publication: United States
• Language: English

Related Subjects

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admitting
air
air sample
analysis
analysis chamber
apparatus
available
capture
chamber
circuit
communicating
component
comprises
containing
counter
counter device
detecting
detector
determining
device
due
electron
electron detector
electronegative
electronegative species
electrons
electrons emitted
emitted
emitting
energy
inlet
inlet communicating
ionizable
ionized
ionizing
measuring
presence
proportional
proportional counter
radioactive
radioactive source
reduction
sample
sample apparatus
sample containing
source
species
species comprises