High-resolution ion chamber
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United States of America Patent
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Oct 25, 2011
Grant Date -
Feb 18, 2010
app pub date -
Aug 18, 2009
filing date -
Aug 18, 2008
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Abstract
Nested ionization chambers provide independent measurements of a radiation beam that does not fully irradiate the volume of one or both chambers. By mathematically combining these independent measurements, partial volume effects caused by a change in ionization detector calibrations when the full detector volume is not irradiated by the radiation beam, may be decreased, providing more accurate measurement of extremely small radiation beams.
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