%0 Journal Article %@ 1090-2716 %A Powell, S %A Cox, BT %A Arridge, SR %D 2019 %F discovery:10071213 %I ACADEMIC PRESS INC ELSEVIER SCIENCE %J Journal of Computational Physics %K Radiative transport, Light transport, Diffuse optics, Biomedical optics, Pseudospectral methods %P 376-382 %T A pseudospectral method for solution of the radiative transport equation %U https://discovery.ucl.ac.uk/id/eprint/10071213/ %V 384 %X The radiative transport equation accurately describes light transport in participating media, though analytic solutions are known only for simple geometries. We present a pseudospectral technique to efficiently compute numerical solutions to large-scale time-dependent and steady-state problems, with anisotropic scattering. A perfectly matched layer is proposed which allows this method to be applied in arbitrarily complex heterogeneous media. Our GPU-accelerated implementation of the technique is validated by comparison with a Monte-Carlo simulation, demonstrating excellent agreement. %Z Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).