Journal Article breast computed tomography synchrotron radiation 7440-57-5 Cadmium Compounds Gaussian beam Gold NQA0O090ZJ Research Support, Non-U.S. Gov't STG188WO13 Tellurium X-ray CT animal model beam filtering brain tumour breast CT cadmium telluride free space propagation gold nanoparticles high-resolution imaging high-resolution porcine lung imaging microbeam microbeam irradiation murine melanoma cells phase contrast phase retrieval preclinical chest phantom propagation based imaging radiochromic dosimetry radiotherapy