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Cross-strip semiconductor detector with cord-wood construction

  • US 6,002,134 A
  • Filed: 10/21/1997
  • Issued: 12/14/1999
  • Est. Priority Date: 10/13/1995
  • Status: Expired due to Fees
First Claim
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1. A cross-strip radiation detector, comprising:

  • (a) a semiconductor having a plurality of sides and of sufficient thickness to interact with ionizing radiation;

    (b) at least one independent radiation-side strip electrode formed on a radiation side of the semiconductor and maintained at a first bias voltage;

    (c) a plurality of signal-collecting-side electrodes formed on a signal collecting side of the semiconductor opposing the radiation side and intercoupled as at least two independent signal-collecting-side signal strips effectively forming an angle with respect to the radiation-side strip electrode, each signal-collecting-side signal strip including one or more electrically coupled signal-collecting-side electrodes and being set at a second bias voltage, wherein at least one of the first and second bias voltages is at a high voltage with respect to the ground level;

    (d) a high-voltage decoupling circuit having an array of high-voltage capacitors formed over the plurality of signal-collecting-side electrodes within the perimeter of the signal collecting side, the high-voltage decoupling circuit connected to the electrodes at the high voltage to receive and decouple signals that are superimposed on the high voltage and are indicative of the ionizing radiation; and

    (e) at least one electrical conductor that interconnects the radiation side and the signal collecting side to transfer a signal from the radiation side to the signal collecting side.

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