3-42 Fast Calibration of EBT Films in Scanned Ion Therapy

• 作者: Dai Zhongying He Pengbo Huang Qiyan Li Qiang Liu Xinguo Yan Yuanlin
• 来源期刊: 中国科学院近代物理研究所和兰州重离子研究装置年报：英文版
• 学科: 物理学
• 关键词: CALIBRATION EBT FILMS
• 年，卷（期）: 2014,（1）
• 页码范围: 135-135
• 页数: 1页
• 分类号: O4

摘要

In the quality assurance of photon and ion beam radiotherapy with EBT films, the dose response curves of thesefilms should previously be calibrated. The traditional calibration method is to cut a big piece of EBT film intomany small ones, which are separately irradiated with different doses. Then these small EBT films are digitizedwith a commercial flatbed color scanner to get the net optical density (netOD) values, which are fitted against thedoses. In this work, we present a fast calibration method of EBT films in scanned ion radiotherapy.