Container inspection system using cobalt-60 .gamma.-ray source and cesium iodide or cadmium tungstate array detector
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United States of America Patent
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Jul 25, 2006
Grant Date -
Sep 16, 2004
app pub date -
Jun 28, 2002
filing date -
Sep 3, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A container inspection equipment with cobalt-60 .gamma.-ray source and cesium iodide or cadmium tungstate detector includes a cobalt-60 .gamma.-ray source, a cask, a front collimator, a rear collimator, a cesium iodide or cadmium tungstate detector, signal and image processing systems, container trailer system, and automatic control system. The cask of the cobalt-60 .gamma.-ray source, the beam shutter, and the front collimator are fixed on the same chassis to form an integration and placed in the source room. The rear collimator, cesium iodide or cadmium tungstate array detector and the radiation catcher are fixed on the same chassis to form an integration and placed in the detector room. A container inspection tunnel is formed between the source room and the detector room. The equipment is mainly used for inspecting smuggling goods and contrabands etc., in large containers, container trucks, train carriage and air containers. The equipment either can be installed in the sea port and land frontier customs or installed at the air port, vital communication line, and railway station.
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