Comparative Studies of Absolute Dose in Water Phantom, Solid Water Phantom and MatriXX with MULTICube Phantom

Introduction: Radiotherapy is one of the important treatment modalities in cancer treatment. To maintain procedure accuracy, phantom an essential tool for absolute dosimetry conformation and Quality Assurance routine cheek up. This work aims to study absorbed dose various phantoms hence make a comparison result with IAEA recommendation (TRS 398) daily QA Linac. Materials Methods: The experiment has been done at Institute Nuclear Medical Physics (INMP), AERE, Savar, Dhaka, under Bangladesh Atomic Energy Commission. For external beam radiation, 6 MV 15 photon beams Varian Clinac iX Linear Accelerator (Linac) were used. One dimensional (1D) water phantom, solid MatriXX MULTICube associate accessories used experiment. Results: We have measured compared data phantoms. variation sold from 1D +2.8% +3.5% MV. MULTIcube +8.0% +3.2% revealed that was best among other deviation within acceptable limit (±5%), except Phantom low energy (8%). Conclusion: It observed accuracy estimation better rather than two. also known cost but needs long time set up experimental arrangement. Solid or can be overcome this problem, which takes only few minutes setup comparatively faster phantom.