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Method for processing locating pulses supplied by a gamma camera and a gamma camera utilizing this method

  • US 4,672,542 A
  • Filed: 05/21/1984
  • Issued: 06/09/1987
  • Est. Priority Date: 05/27/1983
  • Status: Expired due to Term
First Claim
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1. A method for processing locating pulses supplied by a gamma camera, comprising;

  • detecting scintillations generated by the action of a gamma radiation in a scintillator crystal,amplifying and converting said detected scintillations into electrical contributions by a network of photomultiplier tubes,weighting and balancing said contributions by a set of matrices of resistors to establish balanced pulses with respect to a system of reference axes,the summing and integrating said balanced pulses in an integrator stage to generate the locating pulses,converting and standardizing said locating pulses by a calculator circuit into electrical signals representing the Cartesian coordinates of the location of the scintillations on the crystal, performing a standardization in the calculator circuit on the coordinate signals by dividing the substraction of two locating pulses along one coordinate axis by the sum of the same pulses along this axis, the same operation being performed for each reference axis.

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