Mitigation of Nonlinear Background Radiation During Real Time Radiation Monitoring of Containers at a Quayside Crane
First Claim
1. A method to determine during crane hoisted transport at a quayside crane of a container along a transport path a presence of radioactive material being disposed within said container wherein background radiation along said transport path is dynamic, said method comprising steps of:
- developing a background distribution for said background radiation for said transport path;
obtaining concurrently with said crane hoisted transport of said container along said transport path present radiation data from at least one detector disposed in a spatially fixed relationship to said container; and
analyzing said present radiation data in conjunction with said background distribution with respect to said transport path such that one of a positive determination and a negative determination of said radioactive material being present in said container is made.
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Accused Products
Abstract
Dynamic background radiation is mitigated during crane hoisted transport at a quayside crane of a container along a transport path. A background distribution for the background radiation along the transport path is developed. Concurrently with the crane hoisted transport of the container along the transport path radiation data from each of a plurality of detectors disposed in a spatially fixed relationship to the container is obtained. The radiation data in conjunction with positionally commensurate background distribution, can then be analyzed. From such analysis, a positive determination or a negative determination of the radioactive material being present in the container can then made.
49 Citations
29 Claims
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1. A method to determine during crane hoisted transport at a quayside crane of a container along a transport path a presence of radioactive material being disposed within said container wherein background radiation along said transport path is dynamic, said method comprising steps of:
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developing a background distribution for said background radiation for said transport path; obtaining concurrently with said crane hoisted transport of said container along said transport path present radiation data from at least one detector disposed in a spatially fixed relationship to said container; and analyzing said present radiation data in conjunction with said background distribution with respect to said transport path such that one of a positive determination and a negative determination of said radioactive material being present in said container is made. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method to mitigate the effects of dynamic background radiation during real time scanning of one of a succession containers during crane hoisted transport of said containers along a transport path at a quayside crane comprising steps of:
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obtaining radiation data during crane hoisted transport of prior ones of said succession of containers at said quayside crane from a plurality of detectors disposed in a spatially fixed spaced apart relationship to said one of said containers; binning said radiation data obtained during crane hoisted transport of each one of said prior containers with respect to empirical parameters upon which said radiation data obtained during crane hoisted transport of said prior container exhibits dependence; combining said binned radiation data for each one of said parameters into a canonical average; obtaining radiation data during crane hoisted transport of said one of said containers; and analyzing said radiation data having a dependence on one of said parameters in conjunction with said canonical average binned radiation data having a dependence on said one of said parameters such that one of a positive determination and a negative determination of a radioactive material being present in said container is made. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 29)
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21. A method to mitigate the effects of dynamic background radiation during real time scanning of objects while said objects are in motion, said method comprising steps of:
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obtaining radiation data of each one of a succession of said objects from a plurality of detectors disposed in a spatially fixed spaced apart relationship to each of said objects; binning said radiation data obtained for each one of said objects with respect to empirical parameters upon which said radiation data obtained exhibits dependence; combining said binned radiation data for each one of said parameters into a canonical average; obtaining radiation data of a further one of said objects from said plurality of detectors disposed in a spatially fixed spaced apart relationship to said further one of said objects; and analyzing said radiation data of said further one of said objects having a dependence on one of said parameters in conjunction with said canonical average binned radiation data having a dependence on said same one of said parameters to determine whether said radiation data of said further one of said objects is one of being substantially commensurate with said canonical average binned radiation data and being anomalous to said canonical average binned radiation data. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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Specification