This laboratory exercise uses standard physics laboratory equipment to create an analogy to image formation in Computed Tomography. Objects are placed in an enclosure that is largely opaque in the visible spectrum but mostly transparent to the near infrared light. The enclosure is scanned with a photogate using a rotating platform and an image of the contents is formed. This experiment conveys how an image is formed during a CT scan and highlights the important physical and imaging concepts behind CT such as electromagnetic radiation, the interaction of light and matter, image artifacts, and windowing. Resources provided include learning goals, an assessment, software for creating images, and instructions for assembling the equipment.
This is part of a group of laboratories and activities for biomedical physics.
%0 Electronic Source %A Widenhorn, Ralf %D July 28, 2015 %T Portland State Biomedical Physics: Computed Tomography %V 2019 %N 25 June 2019 %8 July 28, 2015 %9 text/html %U http://web.pdx.edu/~ralfw/ct.html
Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.