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Apparatus and methods for detecting, localizing, and imaging of radiation in biological systems

  • US 4,959,547 A
  • Filed: 06/08/1989
  • Issued: 09/25/1990
  • Est. Priority Date: 06/08/1989
  • Status: Expired due to Term
First Claim
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1. A well shielded collimating probe for detecting radiation emanating from a hidden source, said probe comprising a small probe body formed of a radiation blocking material and arranged to be held adjacent said hidden source, radiation detecting means located within said probe body, window means covering aperture means confronting said detecting means through which radiation may pass, and adjustment means for adjusting the solid angle which radiation may pass through said aperture means to said detecting means, said solid angle being continuously variable between a predetermined maximum angle and a predetermined minimum angle and vice versa, whereupon the only radiation reaching said detecting means is that which is within said solid angle.

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