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X-ray imaging system and solid state detector therefor

  • US 4,905,265 A
  • Filed: 02/01/1988
  • Issued: 02/27/1990
  • Est. Priority Date: 12/11/1985
  • Status: Expired due to Fees
First Claim
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1. An x-ray imaging system comprising:

  • an x-ray source for producing an x-ray field having sufficient energy such that compton scattering and pair production have a higher combined probability of producing free electrons in silicon than the photoelectric effect; and

    an x-ray detector comprising a solid state device having a plurality of layers, one of said layers including a semiconductor material with a plurality of charge storage devices, said detector having an extra absorber material for the purpose of enhancing x-ray absorption, said extra absorber material being exposed to said x-ray field to produce free electrons and being positioned sufficiently close to said semiconductor material to permit said free electrons to interact with said charge storage devices.

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