Dosimetric characterization of a small-scale (Zn,Cd)S:Ag inorganic scintillating detector to be used in radiotherapy

PurposeIn modern radiotherapy techniques, to ensure an accurate beam modeling process, dosimeters with high accuracy and spatial resolution are required. Therefore, this work aims propose a simple, robust, small-scale fiber-integrated X-ray inorganic detector investigate the dosimetric characteristics used in radiotherapy.MethodsThe is based on red-emitting silver-activated zinc-cadmium sulfide (Zn,Cd)S:Ag nanoclusters proposed system has been tested under 6 MV photons standard dose rate patient treatment protocol. The article presents performances of terms linearity, repeatability, reproducibility, percentage depth distribution, field output factor. A comparative study shown using microdiamond dosimeter considering data from recent literature.ResultsWe accurately measured small profile 0.5 × cm2 at 100 µm LINAC system. linearity 400 MU/min less than 0.53% 1.10% deviations perfect for regular smallest field. Percentage measurement agrees measurements within 1.30% 2.94%, respectively beams. Besides, stem effect analysis shows negligible contribution fields smaller 3x3 cm2. This highlights drastic decrease convolution point-like detector, especially dimension characterization. Field factor good agreement while comparing it dosimeter.ConclusionAll results presented here anticipated that developed can measure delivered region interest, claim distribution hence be suitable candidate characterization quality assurance