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X-ray computed tomography apparatus of the electron beam type with electron beam intensity measuring capacity

  • US 5,633,906 A
  • Filed: 04/10/1996
  • Issued: 05/27/1997
  • Est. Priority Date: 04/18/1995
  • Status: Expired due to Fees
First Claim
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1. In an x-ray computed tomography apparatus having an annular x-ray source surrounding an examination field, said x-ray source including a ring anode scanned by an electron beam generated by an electron gun for producing an x-ray beam rotating around said examination field, the improvement comprising:

  • said ring anode having, at least one location, at least two neighboring sub-anodes insulated from each other and separated by an insulating interspace; and

    measuring means connected to said sub-anodes for measuring a charge distribution in said electron beam as said electron beam sweeps said interspace between said two sub-anodes.

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