Evaluation and Comparison of Dosimetric Characteristics of Semiflex

Autor: Zahra, Momeni Harzanji, Mohammad Hassan, Larizadeh, Nasim, Namiranian, Abolfazl, Nickfarjam
Rok vydání: 2020
Zdroj: Journal of biomedical physicsengineering. 12(5)
ISSN: 2251-7200
Popis: In modern radiotherapy techniques, the frequently small and non-uniformed fields can increase treatment efficiency due to their highly conformal dose distribution. Particular features including lack of Lateral Charge Particle Equilibrium (LCPE) lead to detectors with high resolution since any error in obtained dosimetric data could cause patient mistreatments.This study aims to evaluate and compare two small detectors (SemiflexIn this experimental study, the dosimetric properties of SemiflexThe detector response shows good stability, no deviation from linearity, and low dose rate dependence (≤1.6%). PDDs and in-plan profiles of both detectors are in good agreement and no significant difference was observed except for the high dose gradient regions (The results indicate both investigated detectors were well performed in small field relative dosimetry and for measuring penumbra, it is better to use microdiamond detector.
Databáze: OpenAIRE