This dataset contains the source data and derivatives of the T1-weighted data with an isotropic resolution of 250 µm. This includes the data after averaging the eight single measurements. The data were registered non-linearly to a common unbiased template using ANTs. These data are part of 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).