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Terms
  • photoacoustic spectroscopy (PAS) A method for obtaining the optical absorption spectra of solids, semisolids, liquids and gases. PAS is inherently insensitive to reflection or scattering from the sample, analyzes opaque samples and can measure spectra below the sample surface.
  • spectroscopy The branch of science dealing with the theory and interpretation of spectra.
  • detector 1. A device designed to convert the energy of incident radiation into another form for the determination of the presence of the radiation. The device may function by electrical, photographic or visual means. 2. A device that provides an electric...
  • tomography Technique that defocuses activity from surrounding planes by means of the relative motions at the point of interest.
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