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Title: Aerosol beam-focus laser-induced plasma spectrometer device

Abstract

An apparatus for detecting elements in an aerosol includes an aerosol beam focuser for concentrating aerosol into an aerosol beam; a laser for directing a laser beam into the aerosol beam to form a plasma; a detection device that detects a wavelength of a light emission caused by the formation of the plasma. The detection device can be a spectrometer having at least one grating and a gated intensified charge-coupled device. The apparatus may also include a processor that correlates the wavelength of the light emission caused by the formation of the plasma with an identity of an element that corresponds to the wavelength. Furthermore, the apparatus can also include an aerosol generator for forming an aerosol beam from bulk materials. A method for detecting elements in an aerosol is also disclosed.

Inventors:
 [1]
  1. Oak Ridge, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
874296
Patent Number(s):
6359687
Assignee:
Lockheed Martin Energy Research Corporation (Oak Ridge, TN)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
aerosol; beam-focus; laser-induced; plasma; spectrometer; device; apparatus; detecting; elements; beam; focuser; concentrating; laser; directing; form; detection; detects; wavelength; light; emission; caused; formation; grating; gated; intensified; charge-coupled; processor; correlates; identity; element; corresponds; furthermore; generator; forming; bulk; materials; method; disclosed; laser beam; bulk material; detecting element; beam focus; /356/

Citation Formats

Cheng, Meng-Dawn. Aerosol beam-focus laser-induced plasma spectrometer device. United States: N. p., 2002. Web.
Cheng, Meng-Dawn. Aerosol beam-focus laser-induced plasma spectrometer device. United States.
Cheng, Meng-Dawn. Tue . "Aerosol beam-focus laser-induced plasma spectrometer device". United States. https://www.osti.gov/servlets/purl/874296.
@article{osti_874296,
title = {Aerosol beam-focus laser-induced plasma spectrometer device},
author = {Cheng, Meng-Dawn},
abstractNote = {An apparatus for detecting elements in an aerosol includes an aerosol beam focuser for concentrating aerosol into an aerosol beam; a laser for directing a laser beam into the aerosol beam to form a plasma; a detection device that detects a wavelength of a light emission caused by the formation of the plasma. The detection device can be a spectrometer having at least one grating and a gated intensified charge-coupled device. The apparatus may also include a processor that correlates the wavelength of the light emission caused by the formation of the plasma with an identity of an element that corresponds to the wavelength. Furthermore, the apparatus can also include an aerosol generator for forming an aerosol beam from bulk materials. A method for detecting elements in an aerosol is also disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

Works referenced in this record:

Aerosol Measurement by Laser-Induced Plasma Technique: A Review
journal, December 1999


Laser-induced plasma spectroscopy (LIPS): a versatile tool for monitoring heavy metal aerosols
journal, June 1999