These are the scanner's raw data of the back-to-back scans supplementary to the "Comprehensive ultrahigh resolution whole brain in vivo MRI dataset of the human phantom" (https://doi.org/10.24352/UB.OVGU-2020-145). In case of any further questions please feel free to contact Falk Luesebrink (falk . luesebrink @ med dot ovgu dot de).