Optimization of Spiral-Wobbler System for Heavy-Ion Radiotherapy
Optimization of Spiral-Wobbler System for Heavy-Ion Radiotherapy
复制标题
重离子放射治疗螺旋摆动系统的优化
DOI：
10.1143/jjap.43.6463
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发表时间：
2004
影响因子：
1.5
通讯作者：
K. Noda
中科院分区：
文献类型：
--
作者：
M. Komori;T. Furukawa;T. Kanai;K. Noda
我们提出了一种振幅调制摆动散射系统，一个所谓的螺旋摆动系统，产生一个大的照射野在一个相对较短的照射端口的重离子放射治疗。优化了摆动器参数，如摆动器半径调制函数、摆动器径向频率和旋转频率，并将照射场的均匀性估计为照射时间的函数。通过使用23 Hz的摆动器径向频率和59 Hz的摆动器旋转频率，可以在1 s的照射持续时间内获得均匀性为±3%的照射场。螺旋摆动器系统适用于呼吸门控照射。
We propose an amplitude modulation wobbler-scatterer system, a so-called spiral-wobbler system, to produce a large irradiation field in a relatively short irradiation port for heavy-ion radiation therapy. The wobbler parameters, such as the wobbler-radius-modulation function, the wobbler radial frequency and the rotational frequency, are optimized and the uniformity of the irradiation field is estimated as the function of irradiation time. By using a wobbler radial frequency of 23 Hz, and a wobbler rotational frequency of 59 Hz, an irradiation field with a uniformity of ±3% can be obtained for an irradiation duration of 1 s. The spiral-wobbler system is applicable to respiration-gated irradiation.