RADIATION FIELD MODELING

辐射场建模

• 批准号: 3916575
• 负责人: J VAN DE GEIJN
• 金额: --
• 依托单位: DIVISION OF CANCER TREATMENT
• 依托单位国家: 美国
• 资助国家: 美国
• 起止时间: 至
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/3916575
• 关键词: computer assisted patient care; computer simulation; electron radiation; ionizing radiation; mathematical model; model design /development; neoplasm /cancer radiation therapy; particle beam; radiation therapy dosage

This is ongoing research and development. The capability to calculate the distribution of absorbed dose produced by photon beams and electron beams of the most general characteristics is fundamental to radiotherapy. The radiation field model has been described before. It takes as a basis the empirical distributions along three mutually perpendicular reference lines in a "master field." This concept is applied to the beam-modifying devices as well. One virtue of this approach is that it requires few experimental data and thus can be implemented very easily. A completely new approach to electron field modeling has been developed and published in 1987. Its application to unit density media has been implemented. Extension to inhomogeneous media is underway. Of special interest are the implications for easy handling of different electron energies and field shapes in combination with photon fields.

这是正在进行的研究和开发。有能力 计算光子产生的吸收剂量分布 电子束和电子束的最一般特征是 放射治疗的基础。辐射场模型已经被 如前所述。它以经验分布为基础 沿着三条相互垂直的参照线 这一概念被应用于波束修改装置，如 井。这种方法的一个优点是它需要很少的东西 实验数据，因此可以非常容易地实现。 一种全新的电子场建模方法是 于1987年开发并出版。它在单位密度中的应用 媒体已经实施。扩展到非均匀介质是 正在进行中。特别值得关注的是Easy的含义 不同电子能量和场形状的处理 与光子场相结合。