Figure 10
From: CT brush and CancerZap!: two video games for computed tomography dose minimization
![Figure 10](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12976-015-0003-4/MediaObjects/12976_2015_3_Fig10_HTML.gif)
A mockup of what the screen might look like in a CancerZap! video game. The player shoots x-ray photons at a scene that is rotating, with one object (the Martian eye [152]) in this case representing the “bad guy” tumor. The gun’s lateral motion would correspond to a fan beam. As in CT Brush, the objects would only become visible as they were shot at, accumulating x-ray dose. In the plane, the ornate figures would be represented by simpler “footprints”, such as triangles and circles, shown here beneath them.