Abstract The response of Al 2 O 3 :C optically stimulated luminescence detectors (OSLDs) was investigated in a 250 MeV pencil proton beam. OSLD mapped for wide range average dose rates up to 9000 Gy s ?1 , corresponding ?150 kGy instantaneous rate each pulse. Two setups ultra-high (FLASH) experiments are presented, which enable OSLDs or biological samples be irradiated either water-filled vials...

A model for computing image ow in image sequences containing a very wide range of instantaneous ows is proposed. This model integrates the spatio-temporal image derivatives from multiple temporal scales to provide both reliable and accurate instantaneous ow estimates. The integration employs robust regression and automatic scale weighting in a generalized brightness constancy framework. In addi...