The version 3.01 of ELMAG, a Monte Carlo program for the simulation of electromagnetic cascades initiated by high-energy photons and electrons interacting with extragalactic background light (EBL), is presented. Pair production and inverse Compton scattering on EBL photons as well as synchrotron losses are implemented using weighted sampling of the cascade development. New features include, among others, the implementation of turbulent extragalactic magnetic fields and the calculation of three-dimensional electron and positron trajectories, solving the Lorentz equation. As final result of the three-dimensional simulations, the program provides two-dimensional source images as function of the energy and the time delay of secondary cascade particles.

中文翻译：

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ELMAG 3.01：对银河系外背景光和磁场中的电磁级联进行三维蒙特卡罗模拟

介绍了 ELMAG 的 3.01 版，这是一个蒙特卡罗程序，用于模拟由高能光子和电子与河外背景光 (EBL) 相互作用引发的电磁级联。EBL 光子上的对产生和逆康普顿散射以及同步加速器损耗是使用级联发展的加权采样来实现的。新功能包括湍流河外磁场的实施和三维电子和正电子轨迹的计算，以及求解洛伦兹方程。作为三维模拟的最终结果，程序提供二维源图像作为能量和二级级联粒子的时间延迟的函数。