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On the efficiency of azimuthal and rotational splitting for Monte Carlo simulation of clinical linear accelerators

机译:关于临床直线加速器蒙特卡罗模拟的方位角和旋转分裂效率

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摘要

This article presents rotational splitting as a modification to the sampling process of the azimuthal angle used in the variance-reduction technique of azimuthal particle redistribution, with the goal to improve the efficiency of this variance-reduction technique for the Monte Carlo simulation of radiation transport in clinical linear accelerators. Using a constant azimuthal angle, instead of a random one, in the azimuthal particle redistribution technique, increases the efficiency of the simulation of a clinical linear accelerator by about 30% and reduces the latent variance of a 10 x 10 cm2 phase space by about 40%.
机译:本文介绍了旋转分裂,作为对方位角粒子再分布的方差减小技术中使用的方位角采样过程的一种改进,目的是提高这种方差减小技术在辐射传输中的蒙特卡罗模拟的效率。临床线性加速器。在方位粒子重新分配技术中,使用恒定方位角而不是随机角度,可将临床线性加速器的模拟效率提高约30%,并将10 x 10 cm2相空间的潜在方差降低约40%。 %。

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