X-ray CT is a non-destructive method that can provide 3D information of the structure inside an object. The principle behind the 3D imaging is that hundreds or thousands of 2D x-ray images are acquired while rotating the object. After data acquisition, the information from the 2D images is reconstructed by software into a virtual 3D representation of the object, typically by using a filtered back projection algorithm. It is possible to visualize the 3D reconstruction e.g. by a volume rendering or by 2D slices in the virtual object to show the internal structure layer by layer. Because the method is non-destructive, in situ experiments can be performed to follow structural changes over time during exposure to external stimuli.
Figure: 2D sllice in a 3D x-ray CT reconstruction of a commercial alkaline AAA batery.
Equipment
- Nikon XT H 225 equipped with a 225 kV reflection target and a 180 kV transmission target.
Location: B310, R964
- In addition to our in-house equipment DTU Energy have access to the following scanners via our collaboration with DTU Industri portal:
- Xradia VersaXRM-410 micro-CT equipped with a 150 kV W reflection target.
Location: B310, R058
- A custom built nano-CT instrument equipped with an Excillum metal jet source.
Location: B310, R959
Contact
Søren Bredmose Simonsen