Method for determining the concentration of atomic species in gases and solids
Abstract
Method for determining the concentration of atomic species in gases and solids. Measurement of at least two emission intensities from a species in a sample that is excited by incident laser radiation. Which generates a plasma therein after a sufficient time period has elapsed and during a second time period, permits an instantaneous temperature to be established within the sample. The concentration of the atomic species to be determined is then derived from the known emission intensity of a predetermined concentration of that species in the sample at the measured temperature, a quantity which is measured prior to the determination of the unknown concentration, and the actual measured emission from the unknown species, or by this latter emission and the emission intensity of a species having known concentration within the sample such as nitrogen for gaseous air samples.
- Inventors:
-
- 304 Cheryl Ave., Los Alamos, NM 87544
- Issue Date:
- Research Org.:
- Laser Diagnostics, Los Alamos, NM (United States)
- OSTI Identifier:
- 871356
- Patent Number(s):
- 5715053
- Assignee:
- Loge, Gary W. (304 Cheryl Ave., Los Alamos, NM 87544)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- FG02-94ER81671
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; determining; concentration; atomic; species; gases; solids; measurement; emission; intensities; sample; excited; incident; laser; radiation; generates; plasma; therein; sufficient; time; period; elapsed; permits; instantaneous; temperature; established; determined; derived; intensity; predetermined; measured; quantity; prior; determination; latter; nitrogen; gaseous; air; samples; measured temperature; atomic species; incident laser; time period; laser radiation; sufficient time; air sample; emission intensity; predetermined concentration; emission intensities; /356/
Citation Formats
Loge, Gary W. Method for determining the concentration of atomic species in gases and solids. United States: N. p., 1998.
Web.
Loge, Gary W. Method for determining the concentration of atomic species in gases and solids. United States.
Loge, Gary W. Thu .
"Method for determining the concentration of atomic species in gases and solids". United States. https://www.osti.gov/servlets/purl/871356.
@article{osti_871356,
title = {Method for determining the concentration of atomic species in gases and solids},
author = {Loge, Gary W},
abstractNote = {Method for determining the concentration of atomic species in gases and solids. Measurement of at least two emission intensities from a species in a sample that is excited by incident laser radiation. Which generates a plasma therein after a sufficient time period has elapsed and during a second time period, permits an instantaneous temperature to be established within the sample. The concentration of the atomic species to be determined is then derived from the known emission intensity of a predetermined concentration of that species in the sample at the measured temperature, a quantity which is measured prior to the determination of the unknown concentration, and the actual measured emission from the unknown species, or by this latter emission and the emission intensity of a species having known concentration within the sample such as nitrogen for gaseous air samples.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}
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