X-ray and gamma-ray radiation detector
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United States of America Patent
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Mar 20, 2018
Grant Date -
Jun 15, 2017
app pub date -
Nov 26, 2014
filing date -
Nov 26, 2013
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Abstract
Disclosed is a semiconductor radiation detector for detecting X-ray and/or gamma-ray radiation. The detector comprises a converter element for converting incident X-ray and gamma-ray photons into electron-hole pairs, at least one cathode, a plurality of detector electrodes arranged with a pitch (P) along a first axis, a plurality of drift electrodes, a readout circuitry being configured to read out signals from the plurality of detector electrodes; and a processing unit connected to the readout circuitry and being configured to detect an event in the converter element. The readout circuitry is further configured to read out signals from the plurality of drift electrodes, and the processing unit is further configured to estimate a location of the event along the first axis by processing signals obtained from both the detector electrodes and the drift electrodes, the location of the event along said first axis is estimated with a precision being greater than the pitch (P).
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