| Summary: | In this work a new kind of transmission source for SPECT imaging, based on multiple
line sources, is presented. The source may be used for either simultaneous or sequential
SPECT transmission imaging to measure patient specific attenuation maps.
Two different, new transmission sources based on the multiple line concept, the collimated
line sources and the multiple line array, were proposed and tested using computer
simulations. Based on simulations, prototypes of the transmission sources were built, and
series of experiments were performed. Computer simulations and experiments showed that
multiple line transmission sources provided accurate attenuation maps.
Compared with other transmission sources, the multiple line transmission sources do
not require complicated hardware or expensive maintenance, but still give good quality
attenuation maps. The multiple line array transmission source has been adopted for
commercial use by Siemens Medical Systems with their ecam SPECT camera. === Science, Faculty of === Physics and Astronomy, Department of === Graduate
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