Means and method for measuring absorption of radiation-scattering samples
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United States of America Patent
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Oct 5, 1999
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N/A
app pub date -
Jun 24, 1998
filing date -
Jun 25, 1997
priority date (Note) -
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Abstract
The present invention provides methods and devices for measuring radiation absorption by a sample. The invention enables one to determine whether the sample scatters the radiation of interest and, if so, to factor out the effects of such scattering and ore accurately determine the true absorption of the sample. The invention may employ a selectively controllable occluder which is moved between three or more different positions to yield three or more different radiation measurements. These measurements can then be compared to one another to determine the nature of any radiation scattering and factor out its effects, enabling more accurate absorption determinations.
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