Applications of Multi-Pinhole Gamma Camera Collimation to Tomography and Image Enhancement

Recently, multi-pinhole gamma camera collimation has been introduced in the field of emission tomography. This collimation process simultaneously produces several images covering a limited angular range, which may then be recombined to obtain tomographic slices of the object imaged. This study has investigated a possible method for improving the images obtained by this technique by combining two multi-pinhole views taken 90(DEGREES) apart. In this way, the problems arising from the limited angle of view should be reduced. During the course of this work, multi-pinhole collimation was also applied to in vivo imaging of the disintegration of tablets. Parameters normally difficult to measure, such as the timing and method of disintegration, can readily be observed with this technique. Collimators were designed and built both for tomography and imaging tablet disintegration, and computer programs were written to reconstruct the images by simple backprojection and by filtered backprojection.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Nuclear Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Simpson, David Ronald

• Engineering, Nuclear

Language dc:language

eng

Identifier

(UMI)AAI8127692

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/67799