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scanning system

A scanner and generator technology, used in the field of security scanning systems, can solve problems such as radiation dose damage

Inactive Publication Date: 2016-04-20
RAPISCAN SYST INC (US)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While there are benefits associated with x-ray scanning, there are also harms due to radiation dose to the object being inspected, to the operator of the radiation-generating scanner device, and to members of the public who are in the vicinity of the scanning device during operation

Method used

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Embodiment Construction

[0041] refer to figure 1 , the scanner system includes an X-ray beam generating system comprising a shielded radiation source 10, a primary collimator set (collimatorset) 12A, and a secondary collimator set 12B, and in this example configured A set of radiation detectors 14 is a folded L-shaped array 16 .

[0042] The primary collimator assembly 12A functions to confine the radiation emitted by the source 10 into a generally fan-shaped beam 18 . The beam 18 will typically have a fan angle in the range of + / - 20 degrees to + / - 45 degrees and a width at the detector element 14 in the range of 0.5 mm to 50 mm. The secondary collimator set 12B is adjustably mounted and the position of the two secondary collimators 12B can be adjusted by actuator 20 under the control of decision processor 22 .

[0043]Detector 14 outputs detector signals indicative of the intensity of radiation it detects, and these detector signals, after conversion and processing described in more detail below,...

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PUM

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Abstract

A scanner system includes a radiation generator (10) arranged to generate radiation for illuminating an object; a detection device (14) arranged to detect the radiation after the radiation has interacted with the object and to detect the radiation as the object moves relative to the object. the generator is moved to produce a sequence of detector data sets; and processing means arranged to process each detector data set thereby producing a control output arranged for control.

Description

technical field [0001] The present invention relates to scanning systems, in particular security scanning systems. It has particular application in using high energy X-ray radiation to check parcels, cargo, container loads and cars for the presence of illegal substances and equipment. Background technique [0002] Due to the increased threat level in the current climate, the use of X-ray imaging to inspect all kinds of baggage and cargo is increasing. While there are benefits associated with X-ray scanning, there are also damages due to radiation dose to the object being inspected, to the operator of the radiation generating scanner device, and to members of the public who are in the vicinity of the scanning device during operation. Good X-ray scanning system design should seek to optimize image quality to provide an adequate level of detection capability while also seeking to minimize the total radiation dose delivered during the scan. [0003] Currently known systems are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V5/00
CPCG01N23/04G01V5/20
Inventor E.J.莫顿J.本达汉W.G.J.兰格维尔德
Owner RAPISCAN SYST INC (US)