Material characterization using a Hyperspectral Infrared Imaging Spectrometer

Fourier transform spectroscopy has found application in many areas including chemometrics, biomedical and biochemical studies, and atmospheric chemistry. This paper describes an investigation into the application of the LLNL Hyperspectral Infrared Imaging Spectrometer (HIRIS) to the non-destructive evaluation of man-made and natural materials. We begin by describing the HIRIS system and the objects studied in the investigation. Next, we describe the technique used to collect the hyperspectral imagery and discuss the processing required to transform the data into usable form. We then describe a technique to analyze the data, and provide some preliminary results.