A vehicle and cargo inspection system (VACIS) is described wherein fast-screening is achieved at low cost in a trade- off between cost, speed, resolution, reliability, transportability and power requirements. In its initial configuration, VACIS utilizes a shuttered Cs-137 source and a detector tower, or linear array, that travel along the cargo vehicle on trolleys that are moved by a common-source, variable-speed, synchronous motor drive. In another configuration, presently under development, the vehicle (such as a train) moves past the source and detector at both creeping and very high variable speeds. The variable velocity is constantly measured and is used as input to the image-generating program to produce undistorted gamma radiographs at 0.5 to 60 mph or more.


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    Titel :

    Gamma radiography cargo vehicle scanner


    Beteiligte:

    Kongress:

    Physics-Based Technologies for the Detection of Contraband ; 1996 ; Boston,MA,United States


    Erschienen in:

    Erscheinungsdatum :

    1997-02-06





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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