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Clinical And Dosimetric Implications Of Air Gaps Between Bolus And Skin Surface During Radiation Therapy, Yousaf Khan, J Eduardo Villarreal-Barajas, Mona Udowicz, Richie Sinha, Wazir Muhammad, Ahmed N. Abbasi, Amjad Hussain
Clinical And Dosimetric Implications Of Air Gaps Between Bolus And Skin Surface During Radiation Therapy, Yousaf Khan, J Eduardo Villarreal-Barajas, Mona Udowicz, Richie Sinha, Wazir Muhammad, Ahmed N. Abbasi, Amjad Hussain
Department of Radiation Oncology
Purpose: The main objective of the study was to evaluate the effect of air gaps of 0 - 5.0 cm between bolus and skin for 1.0 cm Superflab bolus on surface dose (DSurf) and depth of maximum dose (dmax) in solid water and Rando® phantoms.
Methods: In this work, the effects of bolus to surface distance on DSurf and variation in dmax were analyzed in a solid water phantom and in an anthropomorphic Rando® phantom for different field sizes, using Gafchromic® EBT films and farmer chamber.
Results: For field sizes of 5 × 5 cm2 the DSurf …