Spectrum Analysis
| Medical Definition: |
The measurement of the amplitude of the components of a complex waveform throughout the frequency range of the waveform. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) |
| Guide Notes: |
an anal chem technique; GEN or unspecified; prefer specifics; NIM; x-ray absorption spectroscopy goes here + X-RAYS (NIM) |
Spectrum Analysis Categories.
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Circular Dichroism - A change from planar to elliptic polarization when an initially plane-polarized light wave traverses an optically active medium. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) |
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Magnetic Resonance Spectroscopy - Spectroscopic method of measuring the magnetic moment of elementary particles such as atomic nuclei, protons or electrons. It is employed in clinical applications such as NMR Tomography (MAGNETIC RESONANCE IMAGING). |
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Optical Rotatory Dispersion - The method of measuring the dispersion of an optically active molecule to determine the relative magnitude of right- or left-handed components and sometimes structural features of the molecule. |
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Pulse Radiolysis - Use of a pulse of X-rays or fast electrons to generate free radicals for spectroscopic examination. |
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Spectrometry, Gamma - Determination of the energy distribution of gamma rays emitted by nuclei. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) |
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Spectrometry, X-Ray Emission - Identification and measurement of concentration of elements based on the fact that x-rays emitted by an excited element have a wavelength characteristic of that element and an intensity related to its concentration. It includes fluorescence, or secondary-emission, x-ray spectrometry, in which the specimen is irradiated by x-rays. Primary-emission x-ray spectrometry, in which the specimen is bombarded by electrons, is a specific type of x-ray emission spectrometry known as ELECTRON PROBE MICROANALYSIS. |
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Spectrum Analysis, Mass - Analysis of the mass of an object through means of determining the wave length(s) at which electromagnetic energy is absorbed by that object. |
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Spectrum Analysis, Raman - Analysis of the intensity of Raman scattering of monochromatic light as a function of frequency of the scattered light. |
Spectrum Analysis Medical Definitions and Terms
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