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Gamma camera system

  • US 4,061,919 A
  • Filed: 07/06/1976
  • Issued: 12/06/1977
  • Est. Priority Date: 07/06/1976
  • Status: Expired due to Term
First Claim
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1. In a system for imaging the distribution within a region of interest of isotopic materials emitting radiation of given photon energy, said system including composite solid state detector means having a plurality of discrete components which are operationally associated to provide spatial coordinate parameter outputs representative of the spatial disposition of corresponding interactions of said radiation with said detector means, the improvement comprising:

  • first output treating means connected to receive said spatial coordinate parameter outputs of said detector means components, actuable to selectively filter and sum said outputs to derive corresponding coordinate channel signals and an energy channel signal having values corresponding respectively with said spatial disposition and given photon energy exhibited at a said interaction, said first output treating means further including control means for effecting said actuation to filter and sum and for deriving a data acceptance signal in correspondence with said coordinate and energy channel signals, said control means being responsive to a received reset signal to reset said first output means to a clear condition;

    means including spatial coordinate multiplexer means and energy channel multiplexer means respectively coupled to be addressed by said energy channel signals, each said multiplexer means being responsive to a coded actuating signal to effect a transference of said channel signals addressed thereto;

    process control means including memory means for receiving said data acceptance signals and selectively retaining them in received serialized fashion, and actuable to derive said coded actuating signal in correspondence with said serialized data acceptance signals;

    sequential control means for selectively actuating said process control means and regulating an operational cycle of said system; and

    second treating means responsive to said transferred channel signals for deriving readout information representative thereof.

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