Liu Yin-xiang, Li Shu-xiang, Lu Qing-wen
No. 266 Hospital of the PLA, First Military Medical University.
Zhongguo Yi Liao Qi Xie Za Zhi. 2002 Jan;26(1):20-2.
In this paper, two new concepts of DR (Dose Repulsion) and DG (Dose Gravitation) are presented with their calculation formulas. For the problem of selecting beam arcs in x-knife radiotherapy Planning system, a mathematics model of constrained optimization has been built. Furthermore, we have produced a feasible project of automatic selecting optimized beam arcs plan using SA (Simulated Annealing) arithmetic based on the distribution of the fields of DR and DG in the reduced phase space.
本文提出了剂量排斥（DR）和剂量引力（DG）这两个新概念及其计算公式。针对X刀放射治疗计划系统中射束弧的选择问题，建立了一个约束优化数学模型。此外，基于缩减相空间中DR和DG场的分布，我们利用模拟退火（SA）算法生成了一个自动选择优化射束弧计划的可行方案。
