Neutron tomography data of archeological metallic nails with 7 different levels of SNR imaged at ICON, SINQ, Paul Scherrer Institut

Raw projection data in fits format ,containing 7 acquisitions, exposure times at 0.5s, 1s, 5s, 10s, 20s, and 50s.

For each acquisition, there are 5 open beam images named as `ob_0000x.fits`, 5 dark current images named as `dc_0000x.fits`, 6 open beam images with blackbody grid (`bbob_0000x.fits`), and 26 sample images with blackbody grid ('bbs_0000x.fits`) for bias and scattering correction, as well as 1125 raw projections (`ct_0000x.fits`) over a full rotation of 360 degrees evenly. 

recording setup: Andor iKON-CCD camera coupled with a Zeiss 100 mm f/2.0 macro lens and a 30 μm thick gadolinium oxysulfide (Gadox) scintillator