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Photodetector scintillator radiation imager having high efficiency light collection

  • US 5,208,460 A
  • Filed: 09/23/1991
  • Issued: 05/04/1993
  • Est. Priority Date: 09/23/1991
  • Status: Expired due to Fees
First Claim
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1. A radiation imaging device comprising:

  • an array of photodetectors;

    a plurality of scintillator elements arranged in an array, each of said elements having a first end surface through which incident radiation enters the scintillator element and a second end surface optically coupled to said photodetector array, each of said scintillator elements further having sidewalls extending between said first and second end surfaces;

    a non-optically diffusive dielectric layer disposed immediately adjacent to and extending around at least said sidewalls of each of said scintillator elements, said dielectric layer having an optical index that is less than the optical index of said scintillator element; and

    an optically reflective layer adjoining said dielectric layer.

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