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Title: Two-dimensional position sensitive radiation detectors

Nuclear reaction detectors capable of position sensitivity with submillimeter resolution in two dimensions are each provided by placing arrays of scintillation or wave length shifting optical fibers formed of a plurality of such optical fibers in a side-by-side relationship in X and Y directions with a layer of nuclear reactive material operatively associated with surface regions of the optical fiber arrays. Each nuclear reaction occurring in the layer of nuclear reactive material produces energetic particles for simultaneously providing a light pulse in a single optical fiber in the X oriented array and in a single optical fiber in the Y oriented array. These pulses of light are transmitted to a signal producing circuit for providing signals indicative of the X-Y coordinates of each nuclear event.
Inventors:
 [1]
  1. (Oak Ridge, TN)
Issue Date:
OSTI Identifier:
869168
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN) ORNL
Patent Number(s):
US 5289510
Contract Number:
AC05-84OR21400
Research Org:
LOCKHEED MARTIN ENRGY SYST INC
Country of Publication:
United States
Language:
English
Subject:
two-dimensional; position; sensitive; radiation; detectors; nuclear; reaction; capable; sensitivity; submillimeter; resolution; dimensions; provided; placing; arrays; scintillation; wave; length; shifting; optical; fibers; formed; plurality; side-by-side; relationship; directions; layer; reactive; material; operatively; associated; surface; regions; fiber; occurring; produces; energetic; particles; simultaneously; providing; light; pulse; single; oriented; array; pulses; transmitted; signal; producing; circuit; signals; indicative; x-y; coordinates; event; reactive material; wave length; signals indicative; simultaneously providing; fiber array; surface region; optical fibers; active material; optical fiber; radiation detector; position sensitive; radiation detectors; light pulse; operatively associated; nuclear reaction; single optical; signal producing; side-by-side relationship; position sensitivity; reaction occurring; energetic particles; sensitive radiation; shifting optical; surface regions; side-by-side relation; reaction occur; single optic; detectors capable; /376/