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CT imaging system with multiple peak x-ray source

  • US 7,778,382 B2
  • Filed: 08/18/2006
  • Issued: 08/17/2010
  • Est. Priority Date: 06/05/2003
  • Status: Active Grant
First Claim
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1. A method of scanning a patient, said method comprising the steps of(a) establishing a first electron-accelerating voltage potential between a first cathode and an anode;

  • (b) establishing a second electron-accelerating voltage potential between a second cathode and said anode;

    (c) emitting a first plurality of electrons from said first cathode and toward said anode so that said first plurality of electrons impinge on said anode and thereby generate a first x-ray beam;

    (d) emitting a second plurality of electrons from said second cathode and toward said anode so that said second plurality of electrons impinge on said anode and thereby generate a second x-ray beam;

    (e) directing first x-ray beam and said second x-ray beam in alternating pulses through a filter device so as to form an alternating pulse composite x-ray beam;

    (f) directing said alternating pulse composite x-ray beam through said patient and thereafter receiving said alternating pulse composite x-ray beam with a detector so as to accordingly generate x-ray signals; and

    (g) generating an x-ray image in response to said x-ray signals;

    wherein said first electron-accelerating voltage potential has a characteristic first kilovolt peak, said second electron-accelerating voltage potential has a characteristic second kilovolt peak, and said second kilovolt peak is different from said first kilovolt peak.

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