Container inspection system using cobalt-60 γ-ray source and cesium iodide or cadmium tungstate array detector
First Claim
1. A container inspection equipment with the cobalt-60 γ
- -ray source or the cesium-137 γ
-ray source and a cesium iodide or cadmium tungstate detector, comprising;
a γ
-ray source and a cask for shielding the source;
a front collimator and a rear collimator;
a detector and the related electronic circuit;
a signal and image processing system; and
a container trailer system and an automatic control system, wherein;
the radiation source is a cobalt-60 γ
-ray source or a cesium-137 γ
-ray source;
the detector is a cesium iodide or cadmium tungstate array detector;
the cobalt-60 γ
-ray source or the cesium-137 γ
-ray source is equipped with a beam shutter configured to automatically open and close, the beam shutter is connected with the cask of the γ
-ray source;
the cesium iodide or cadmium tungstate array detector is a strip array constituted of blocks in series arrangement consisting cesium iodide or cadmium tungstate scintillator crystals each coupled to a silicon photodiode and an electrical circuit;
the cask of the cobalt-60 γ
-ray source or the cesium-137 γ
-ray source, the beam shutter, and the front collimator are fixed on a first common chassis that is placed in a source room;
the rear collimator, the cesium iodide or cadmium tungstate array detector and a radiation catcher are fixed on a second common chassis that is placed in a detector room; and
between the source room and the detector room is a container inspection tunnel.
1 Assignment
0 Petitions
Accused Products
Abstract
A container inspection equipment with cobalt-60 γ-ray source and cesium iodide or cadmium tungstate detector includes a cobalt-60 γ-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 γ-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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Citations
10 Claims
-
1. A container inspection equipment with the cobalt-60 γ
- -ray source or the cesium-137 γ
-ray source and a cesium iodide or cadmium tungstate detector, comprising;a γ
-ray source and a cask for shielding the source;a front collimator and a rear collimator; a detector and the related electronic circuit; a signal and image processing system; and a container trailer system and an automatic control system, wherein; the radiation source is a cobalt-60 γ
-ray source or a cesium-137 γ
-ray source;the detector is a cesium iodide or cadmium tungstate array detector; the cobalt-60 γ
-ray source or the cesium-137 γ
-ray source is equipped with a beam shutter configured to automatically open and close, the beam shutter is connected with the cask of the γ
-ray source;the cesium iodide or cadmium tungstate array detector is a strip array constituted of blocks in series arrangement consisting cesium iodide or cadmium tungstate scintillator crystals each coupled to a silicon photodiode and an electrical circuit; the cask of the cobalt-60 γ
-ray source or the cesium-137 γ
-ray source, the beam shutter, and the front collimator are fixed on a first common chassis that is placed in a source room;the rear collimator, the cesium iodide or cadmium tungstate array detector and a radiation catcher are fixed on a second common chassis that is placed in a detector room; and between the source room and the detector room is a container inspection tunnel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- -ray source or the cesium-137 γ
Specification