Patent ID: 7215737
Filing Date: 2007-05-08
Classification: G01V

Abstract:
1. A container detecting system, comprising: a horizontal accelerator for emitting radiation, a vertical accelerator for emitting radiation, a gantry tower composed of a first vertical girder, a second vertical girder, an upper cross girder, and a lower cross girder, and defining a scanning channel, a horizontal collimator disposed in front of the horizontal accelerator, and having a slit from which radiation is emitted to define a first plane of radiation, a vertical collimator disposed in front of the vertical accelerator, and having a slit from which radiation is emitted to define a second plane of radiation that is parallel with the first plane of radiation, a vertical collimation column for providing therein the horizontal collimator, and being fixed to the first vertical girder, a horizontal collimation girder for providing therein the vertical collimator, and being fixed to the upper cross girder, a double-detector arm mounted in the second vertical girder of the gantry tower, comprising a plurality of detector modules for receiving the first and second planes of radiation, the plurality of detector modules comprising a first horizontal beam detector module for receiving the first plane of radiation, and a first vertical beam detector module for receiving the second plane of radiation, a second horizontal beam detector module for receiving the first plane of radiation, a second vertical beam detector module for receiving the second plane of radiation, and a supporting seat on a bottom surface, wherein a lower surface of the lower cross girder of the gantry tower is fixed with the supporting seat, a first end and a second -end of the lower cross girder is connected to the first vertical girder and to the second vertical girder, and a bearing plate is disposed on an upper surface of the lower cross girder for allowing a container truck to pass through the scanning channel.