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Investigation of beam property correlation in a mixed field beam using collimators of different compositions.

机译:使用不同成分的准直仪研究混合场光束中的光束特性相关性。

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摘要

Concrete-polyethylene interchangeable collimators are used to determine the field size and allow for flexibility in treatment planning at the Northern Illinois University Institute for Neutron Therapy at Fermilab. New collimator material is being evaluated to improve durability and safety during use. To this end, an effort has been undertaken to design epoxy-based versions that could effectively replace the current models. The leading candidate of the epoxy-based collimators was chosen to undergo beam property investigations and comparisons between the two collimator models were made. Dose buildup measurements were taken and dose components of the mixed field were calculated using the epoxy and concrete-polyethylene collimators. Beam properties tested were found to deviate by less than 3% between the different collimators in both areas of this investigation.
机译:混凝土-聚乙烯可互换准直仪用于确定视野大小,并在费米实验室的北伊利诺伊大学中子治疗研究所提供治疗计划方面的灵活性。正在评估新的准直器材料,以提高使用过程中的耐用性和安全性。为此,已经进行了努力以设计可以有效替代当前模型的基于环氧树脂的版本。选择了基于环氧的准直仪的主要候选人进行光束特性研究,并比较了两种准直仪模型。进行剂量积累测量,并使用环氧和混凝土-聚乙烯准直仪计算混合场的剂量成分。在本研究的两个区域中,发现不同准直仪之间测试的光束特性偏差小于3%。

著录项

  • 作者

    Ernst, Joshua Michael.;

  • 作者单位

    Northern Illinois University.;

  • 授予单位 Northern Illinois University.;
  • 学科 Physics General.;Physics Radiation.
  • 学位 M.S.
  • 年度 2010
  • 页码 65 p.
  • 总页数 65
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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