Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Patent
1996-12-16
2000-11-21
Smith, Ruth S.
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
600431, 250303, 250308, A61B 600
Patent
active
06149593&
ABSTRACT:
A method and apparatus for detecting beta particles in the presence of high gamma background using secondary electron emission (SEE) as the primary beta particle detector. Diamond-like thin films having coefficients for SEE as high as 50 are preferably used in a small hand-held probe whereby radiolabeled malignancies as small as 3 mm in diameter can be detected. An electron multiplier amplifies the secondary electron signal for generation of an audible signal or a display indicative of the level of beta radiation passing through the air-vacuum interface of the hand-held probe.
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Smith Ruth S.
The Trustees of the University of Pennsylvania
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