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Updated: May 6, 2026

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减差技术对TOPAS MC MC常规辐射疗法模拟的影响

André L E Fidelis1, Felipe M L de Souza1, Juliana de M Nascimento1

  • 1Universidade Federal do Rio de Janeiro (UFRJ), Instituto de Física, Rio de Janeiro, RJ, Brazil; Instituto de Radioproteção e Dosimetria (IRD), Comissão Nacional de Energia Nuclear (CNEN), Rio de Janeiro, RJ, Brazil.

Computers in biology and medicine
|February 7, 2025
PubMed
概括

像几何粒子分裂和重要性采样这样的变量减少技术 (VRT) 显著提高了放射治疗束质量指数计算的蒙特卡洛模拟效率. 重要 采样显示了最高的效率增长,提高了精度,但没有大幅增加处理时间.

关键词:
殖民地方法 殖民地方法几何粒子分裂 几何粒子分裂医学物理 医学物理蒙特卡罗的蒙特卡罗是一个非常好的城市.辐射疗法 辐射疗法减小差异的技术 减小差异的技术

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The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
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