Scintillation event localization in a radiation particle detector
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United States of America Patent
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Jun 12, 2018
Issued Date -
Dec 28, 2017
app pub date -
Mar 15, 2016
filing date -
Mar 17, 2015
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Abstract
A method for scintillation event localization in a radiation particle detector includes providing a plurality of scintillator element locations (2′) configured to emit a burst of photons responsive to a radiation particle being absorbed at the scintillator element location (2′). A burst of photons emitted by the scintillator element location (2′) is detected with a photosensor (5). The photosensor (5) includes an array of single photon avalanche diodes configured to break down responsive to impingement of a photon. Breakdown data (30) is acquired indicative of which of the single photon avalanche diodes are in breakdown. Predetermined photosensor sensitivity data (20, 40) assigns single photon avalanche diodes to groups. Each group is assigned to exactly one scintillator element location (2′). Finally the number of single photon avalanche diodes in breakdown is determined for each group individually to identify the scintillator element location (2′) that emitted the burst of photons.
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