Inverse planning of intensity-modulated radiation therapy, automation of inverse planning, Real time dose adaptation of intensity-modulated radiation therapy, Motion management of radiation therapy, gated helical tomotherapy, Validation and application of deformable image registration in radiation therapy, Functional imaging in radiation therapy, application of SPECT, PET, functional CT in radiotherapy, Radiobiology, space and time fractionated radiotherapy, Intensity-modulated grid-therapy, Optimization of volume-modulated arc therapy, Intensity-modulated electron beams, Simplified intensity modulated arc therapy