ESCA/Raman spectroscopy system for the analysis of metal corrosion products
AssigneeThe United States of America as represented by the United States Department of Energy
InventorsRaymond J. Blasi, David A. Allison
Life of this patent
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Abstract
An analytical instrument for performing ESCA and Raman measurements, having a vacuum chamber and a sample holder. The ESCA/Raman system enables the rapid acquisition of the molecular information from both homogeneous and heterogeneous corrosion films and deposits on metal specimens.
Claims8
A device for performing Raman measurements, comprising:
- a vacuum chamber;
- a sample holder, mounted within the vacuum chamber;
- an ion gun, mounted within the vacuum chamber;
- a laser light delivery probe, mounted within the vacuum chamber;
- a scattered light collection probe, mounted within the vacuum chamber;
- a laser, optically linked to the laser light delivery probe;
- a monochromator, optically linked to the scattered light collection probe;
- and
- a light detector, optically linked to the monochromator.
A device for performing ESCA and Raman measurements, comprising:
- a vacuum chamber;
- a sample holder, mounted within the vacuum chamber;
- an ESCA measuring device in communication with the vacuum chamber;
- and
- a Raman measuring device in communication with the vacuum chamber.
A device for performing ESCA and Raman measurements, comprising:
- a vacuum chamber;
- a sample holder;
- mounted within the vacuum chamber;
- an X-ray source, in communication with the vacuum chamber;
- an electron detector, in communication with the vacuum chamber;
- an ion gun, in communication with the vacuum chamber;
- a laser light delivery probe, in communication with the vacuum chamber;
- and
- a scattered light collection probe, in communication with the vacuum chamber.
A process for characterizing the chemical composition of a sample, comprising the steps of:
- (a) placing the sample within a vacuum chamber;
- (b) performing an ESCA analysis on a selected area of the sample within the vacuum chamber;
- and
- (c) performing a Raman spectroscopic analysis on the same selected area of the sample within the vacuum chamber.
Dependencies are inferred from the claim text.