Kan, Yi KaiYi KaiKanKärtner, Franz X.Franz X.KärtnerLe Borne, SabineSabineLe BorneRuprecht, DanielDanielRuprechtZemke, JensJensZemke2023-01-042023-01-042023-02-15Journal of Computational Physics 473: 111724 (2023-01-15)http://hdl.handle.net/11420/14497Inverse Compton Scattering (ICS) has gained much attention recently because of its promise for the development of table-top-size X-ray light sources. Precise and fast simulation is an indispensable tool for predicting the radiation property of a given machine design and to optimize its parameters. Instead of the conventional approach to compute radiation spectra which directly evaluates the discretized Fourier integral of the Liénard-Wiechert field given analytically (referred to as the frequency-domain method), this article focuses on an approach where the field is recorded along the observer time on a uniform time grid which is then used to compute the radiation spectra after completion of the simulation, referred to as the time-domain method. Besides the derivation and implementation details of the proposed method, we analyze possible parallelization schemes and compare the parallel performance of the proposed time-domain method with the frequency-domain method. We will characterize scenarios/conditions under which one method is expected to outperform the other.en1090-27162023Elsevierhttps://creativecommons.org/licenses/by-nc-nd/4.0/Inverse Compton ScatteringLiénard-Wiechert fieldRadiation spectraMathematikJournal Article10.15480/882.484010.1016/j.jcp.2022.11172410.15480/882.4840Journal Article