Spatial distributions of environmenral radiations at medical linac undergoing treatment of VMAT using Taguchi method

This study monitors environmental radiation using a thermoluminescent dosimeter (TLD) in the treatment vault of Axesse (Elekta 2538) linear accelerator. The TLD system was optimized for initial temperature, heat rate, and maximum set temperature using the Taguchi method. The half value layer was determined. Minimum detectable dose using this optimized TLD method was also identified.