The nanocavitation distribution in deformed High Density PolyEthylene (HDPE) was investigated. A flat notched sample of HDPE, under steady crosshead speed up to the end stress softening, observed by classical synchrotron parallel beam microtomography and magnified holotomography with a true spatial resolution 0.7 μm 0.05 μm, respectively. Image processing, 3D image segmentation 2D-Fast Fourier ...