CT Explained
A CT scanner (computed tomography) turns an X-ray tube and a curved row of detectors around the object, taking hundreds of views from every side.
This picture is a cloud of paint. You can , , , , , , and .
Paint with your finger. It stays on these splats, wherever they go next.
Your paint is on this cloud. to see the sharp picture.
- Shelf
- Imaging
- Kind
- Built from a recipe
- Made from
- When it is scanned, drag up or down on the shell to cut into it.
- Sound
- Yes
- Licenses
- Own work (made in the page)
How to play
Tap to scan the shell. Once it is scanned, drag up or down on it to cut into it.
Its controls
| Control | Kind | Range | Start |
|---|---|---|---|
| Scan or undo the scan | Tap | ||
| Scan | Switch | Off | |
| In the scanner | List | 20 choices | Nautilus shell |
About it
A CT scanner (computed tomography) turns an X-ray tube and a curved row of detectors around the object, taking hundreds of views from every side. A computer works back from those views to how dense the object is at every point of a thin slice. Moving the object through the ring, slice after slice, gives a whole volume.
Here the shell is a chambered nautilus, built for the splash. As the ring passes, the shell turns into its CT volume: bright where the shell is dense, empty where there is air. Drag up or down to cut into the volume and see the chambers and the walls between them. Real scans of a nautilus show the same spiral.
Choose another splash to put in the scanner in the Splash tab. Its CT volume is worked out from its shape: a dense skin around a softer, even inside, since the splash has no real inside to measure.
Details
- Splats
- Opens at 200,000 at Mid Detail, 113,984 at Low, and up to 850,000 at Max
Sources and credits
Made in Splashery. Its code is MIT.
In The Splash Manual
Share it
This link opens it in the Playground. To put it on your own page, add the element and one script tag. Every option.
https://splashery.app/play/?toy=how-ct
<script type="module" src="https://splashery.app/play/src/element.js"></script> <splashery-toy toy="how-ct"></splashery-toy>
Nearby
Walnut CTThis is a real walnut, scanned with X-ray CT at CWI in Amsterdam: more than a thousand X-ray pictures taken from all around it, worked back into a volume of how dense the walnut is at every point.
Fruit MRIAn MRI scanner (magnetic resonance imaging) uses no X-rays.
Airport X-rayAn airport scanner sends a fan of X-rays through each bag as the belt carries it past, and a row of detectors measures what gets through, one line at a time.
Electron MicroscopeA scanning electron microscope sweeps a fine beam of electrons across a sample in a vacuum.