Systems and methods for reducing polarization in imaging detectors
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United States of America Patent
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Jun 5, 2018
Issued Date -
Dec 7, 2017
app pub date -
Jul 26, 2017
filing date -
Jan 13, 2016
priority date (Note) -
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Abstract
A method is provided including acquiring detection events with a radiation detector including a semiconductor plate and configured to produce electrical signals in response to absorption of ionizing radiation in the semiconductor plate, wherein electrons and holes are generated responsive to absorption of the ionizing radiation. The semiconductor plate includes a first surface opposed to a second surface, with sidewalls interposed between the first surface and the second surface. A cathode electrode is disposed on the first surface and pixelated anode electrodes are disposed on the second surface. The method also includes optically coupling infrared (IR) radiation into a first portion of at least one of the sidewalls of the semiconductor plate of the radiation detector, and not coupling IR radiation into a second portion of the at least one of the sidewalls.
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