USE OF SOLID CRYSTALS AS CONTINUOUS LIGHT PIPES TO FUNNEL LIGHT INTO PMT WINDOW
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United States of America Patent
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N/A
Issued Date -
Dec 30, 2010
app pub date -
Jun 29, 2010
filing date -
Jun 29, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An apparatus for estimating a property in a borehole penetrating the earth, the apparatus having: a carrier configured for being conveyed through the borehole; a scintillation crystal disposed at the carrier, a first portion of the crystal having a first cross-sectional area; and a photodetector optically coupled to the scintillation crystal and configured to detect photons generated in the crystal by interactions with radiation to estimate the property, the photodetector having a second cross-sectional area configured to couple to the crystal; wherein the crystal at a second portion tapers from the first cross-sectional area to the second cross-sectional area to guide the generated photons to the photodetector.
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