Our research group has made an open access dataset for image reconstruction available at the following link:
The measurement data was collected and documented by K. Hämäläinen, L. Harhanen, A. Kallonen, A. Kujanpää, E. Niemi and S. Siltanen. Our group used the walnut data for testing several tomographic reconstruction algorithms, as you can see in the homepage. You are free to use the dataset for scientific purposes, but please take care to cite the authors.
Have fun reconstructing!
