Application of the Photon Doppler Velocimetry (PDV) technique in tension-torsion Hopkinson bar experimentsLukasz Farbaniec, Yuan Xu, Junyi Zhou, Sophoclis Patsias, Duncan Macdougall, Julian Reed, Nik Petrinic, Clive Siviour, Antonio Pellegrino and Daniel E. EakinsEPJ Web Conf., 250 (2021) 01025DOI: https://doi.org/10.1051/epjconf/202125001025