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Directional gamma ray spectrometer

  • US 5,021,652 A
  • Filed: 01/11/1990
  • Issued: 06/04/1991
  • Est. Priority Date: 01/11/1990
  • Status: Expired due to Fees
First Claim
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1. A directional gamma ray spectrometer comprising:

  • (a) an elongate scintillation device responsive to impinging gamma rays, said device having spaced ends and having an elongate outer surface shaped as a cylinder;

    (b) end located scintillation responsive means for forming output indicative of scintillation events of said device;

    (c) a surrounding sleeve about said device(i) along the length thereof in the form of a single turn helix;

    (ii) formed of a material attenuating gamma rays to a specified degree; and

    (iii) having a window formed therein wherein the window encircles to defined a directional radiation bias and wherein the directional bias is a specified range of azimuth.

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