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Please use this identifier to cite or link to this item: http://www.lib.ncsu.edu/resolver/1840.16/5470

Title: A New Method for Radioactive Particle Tracking
Authors: Shehata, Ashraf Hassan
Advisors: R. P. Gardner, Committee Chair
A. Hawary, Committee Member
M. Bourham, Committee Member
Geir Johanson, Committee Member
K. L. Murty, Committee Member
Keywords: radioisotopes application
flow characterization
flow mapping
Radioactive particle tracking
Issue Date: 8-Dec-2005
Degree: PhD
Discipline: Nuclear Engineering
Abstract: A system based on the concept of three detectors radio active particle tracking, to track a particle non-invasively in the three dimensions is presented. It consists of a set of three well collimated detectors mounted on a platform that can be moved to track the radioactive particle vertically through one collimated detector with a horizontal slot opening. The other two collimated detectors with vertical slot opening can be rotated angularly to track the radioactive particle in the planar domain, and deduce the polar coordinates. A complete description of the actual system developed is outlined including the hardware, the automation and control software, and the data acquisition aspects. A critique of the conventional tomographic radioactive particle tracking was established in comparison to the new three detectors system we developed. A number of obvious and valuable advantages of the new method were pointed out. The result presented here are illustrative through a series of benchmark experiments to test and verify the performance of the system. Results of real trajectories of a single radioactive particle moving in air, and in a bed filled with a mass of granular spherical attenuating medium is also presented. Through testing benchmark experiments that include a variety of real time trajectories the success of the tracking system is demonstrated.
URI: http://www.lib.ncsu.edu/resolver/1840.16/5470
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