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X-ray examination apparatus and method

  • US 20050018812A1
  • Filed: 12/02/2002
  • Published: 01/27/2005
  • Est. Priority Date: 12/11/2001
  • Status: Active Grant
First Claim
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1. An X-ray examination apparatus, comprising:

  • an X-ray source for generating X-rays;

    X-ray detecting means for detecting X-rays after penetration through an object of interest providing a detector dose signal accurately indicating the X-ray dose;

    X-ray dose sensing means for measuring the current X-ray dose of the X-rays penetrating the object of interest providing a sensor dose signal indicating the current X-ray dose; and

    control means for controlling said X-ray source by a control signal being adapted for generating said control signal by correcting said sensor dose signal, said control means comprising storage means for storing a number of values of the last measured sensor dose signal and correcting means for generating a correction signal for correcting the sensor dose signal, said correction signal being generated from the current value of said detector dose signal and the stored value of the sensor dose signal measured at essentially the same time as said value of said detector dose signal.

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