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Integrator circuitry for single channel radiation detector

  • US 7,411,198 B1
  • Filed: 05/31/2006
  • Issued: 08/12/2008
  • Est. Priority Date: 05/31/2006
  • Status: Expired due to Fees
First Claim
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1. A method for detecting charged particle radiation or uncharged radiation that impinge on a radiation detector, said radiation detector producing pulses of electrical charge, said method comprising:

  • providing a circuit comprised of a first node and a second node and further comprising a capacitance between said first node and said second node;

    connecting said circuit to said radiation detector such that said electrical charge produces a voltage across said capacitance at said first node;

    providing an amplifier and connecting an amplifier input to said first node;

    configuring said amplifier to produce output voltage pulses at an amplifier output in response to said pulses of electrical charge wherein a peak voltage of said output voltage pulses represents an energy in said charged particle radiation or uncharged radiation;

    providing a current feedback loop from said amplifier output to said amplifier input such that said current feedback loop supplies a current error signal to said amplifier input; and

    placing an operational amplifier in series with said feedback loop from said amplifier output to said amplifier input.

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