Particle detector and neutron detector that use zinc sulfide phosphors
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United States of America Patent
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Mar 16, 2010
Grant Date -
Jan 19, 2006
app pub date -
Apr 13, 2005
filing date -
Apr 15, 2004
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Abstract
The characteristics of the phosphor ZnS:Ag,Cl which has a considerably high fluorescence yield in response to incident particles thus allowing for their easy detection are used as such and combined with the finding that the fluorescence components in the range of shorter wavelengths are short-lived, which led to an improvement of counting characteristics, hence allowing for high-rate measurements of particles. When B370 was used as an optical filter to pick up fluorescence components shorter than 450 nm, the decay time of short-lived fluorescence components could be reduced from 370 ns to 200 ns.
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