Aerosol beam-focus laser-induced plasma spectrometer device

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874296

Cheng, Meng-Dawn ^[1]

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1. Oak Ridge, TN

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.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• DOE Contract Number: AC05-96OR22464
• Assignee: Lockheed Martin Energy Research Corporation (Oak Ridge, TN)
• Patent Number(s): US 6359687
• OSTI ID: 874296
• Country of Publication: United States
• Language: English

Related Subjects

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
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