FullMonte: fast Monte-Carlo light simulator

Fynn Schwiegelshohn; Tanner Young-Schultz; Yasmin Afsharnejad; Daniel Molenhuis; Lothar Lilge; Vaughn Betz

doi:10.1117/12.2526868

22 July 2019 FullMonte: fast Monte-Carlo light simulator

Fynn Schwiegelshohn, Tanner Young-Schultz, Yasmin Afsharnejad, Daniel Molenhuis, Lothar Lilge, Vaughn Betz

Proceedings Volume 11079, Medical Laser Applications and Laser-Tissue Interactions IX; 1107910 (2019) https://doi.org/10.1117/12.2526868
Event: European Conferences on Biomedical Optics, 2019, Munich, Germany

Abstract

Determining the light propagation in heterogeneous media is a challenging task which can only be approximated by solving the Boltzmann transport equation via diffusion theory. However, diffusion theory becomes very inaccurate at interfaces, boundaries, sources, and sinks, which are present in heterogeneous media. Monte Carlo methods are able to converge to the correct solution by simulating a sufficiently high number of photons, at the cost of increased runtime. Therefore, it is important to optimize the Monte Carlo simulator, thereby allowing more photons to be simulated and a more accurate solution within a given runtime. FullMonte is a full-featured simulator that uses processor-optimized operations to achieve the highest performance of any 3D tetrahedral Monte Carlo light propagation software to date. This paper presents two medical use cases which benefit from FullMonte, highlights new features and explains the optimizations that lead to its high performance.

Citation Download Citation

Fynn Schwiegelshohn, Tanner Young-Schultz, Yasmin Afsharnejad, Daniel Molenhuis, Lothar Lilge, and Vaughn Betz "FullMonte: fast Monte-Carlo light simulator", Proc. SPIE 11079, Medical Laser Applications and Laser-Tissue Interactions IX, 1107910 (22 July 2019); https://doi.org/10.1117/12.2526868

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