Radiography and Planar Imaging
This activity uses a device to demonstrate the principles of radiography without the use of ionizing radiation. It utilizes infrared radiation and an up-converting phosphorescent screen to probe the contents of an enclosure which is opaque to visible light. The apparatus enables students to explore physics concepts used in radiography including properties of electromagnetic radiation, attenuation, image formation, differences between planar x-ray imaging and computed tomography, as well as digital and analog imaging.
Laboratory Guide
Radiography Lab Guide (pdf) (docx)
Additional Resources
Presentations
Otto K. Zietz, Kelsey Adams, Elliot Mylott, and Ralf Widenhorn, "Apparatus to Visualize Radiography without the Use of Ionizing Radiation," AAPT Summer Conference, Portland, OR (July 2013).
Awards
3rd Place and Low-Cost Winner, AAPT Summer Conference Apparatus Competition (July 2013)
Otto K. Zietz, Kelsey Adams, Elliot Mylott, and Ralf Widenhorn
