Article 1 Calibration 1 Dose distributions 1 Dose verification Humans 1 IMRT 1 Independent analysis 1 Intensity-modulated radiation therapy 1 Irradiation fields 1 Light distribution 1 Radiation therapy 1 Radiotherapy 1 Radiotherapy, Intensity-Modulated 1 Scintillation counters 1 Scintillator 1 Segment verification 1 Verification systems 1 Verification tools 1 calibration 1 cancer localization 1 cancer radiotherapy 1 computer assisted tomography 1 human 1 intensity modulated radiation therapy 1 irradiation 1 light 1 maximum permissible dose 1 prostate cancer 1 radiation beam 1 radiation dose distribution 1