The generation of space radiation on Earth is essential to study and predict the effects of radiation on space travelers, electronics, or materials during future long-term space missions. Next to the heavy ions of the galactic cosmic rays, solar particle events play a major role concerning the radiation risk in space, which consist of intermediate-energy protons with broad spectra and energies up to a few hundred MeV. This work describes an approach for the ground-based generation of solar particle events. As a proof of principle, a passive beam modulator with a specific funnel-shaped periodic structure was designed and is used to convert a monoenergetic proton beam into a spectral proton energy distribution, mimicking a solar particle event from August 1972, which is known as one of the strongest recorded SPE events. The required proton beam of 220 MeV can be generated at many existing particle accelerators at research or particle therapy facilities. The planning, manufacturing and testing of the modulator is described step by step. Its correct manufacturing and the characteristics of the solar particle event simulator are tested experimentally and by means of Monte Carlo simulations. Future modulators will follow the same concept with minor adjustments such as a larger lateral extension. As of now, the presented beam modulator is available to the research community to conduct experiments at GSI for exposure under solar particle event conditions. In addition, researchers can use and apply the described concept to design and print their individualized modulator to reproduce any desired solar particle event spectrum or request the presented modulator geometry from the authors.

地球上空间辐射的产生对于研究和预测未来长期太空任务期间辐射对太空旅行者、电子设备或材料的影响至关重要。除了银河宇宙射线的重离子之外，太阳粒子事件在太空辐射风险方面发挥着重要作用，太阳粒子事件由具有广谱和能量高达几百兆电子伏的中能质子组成。这项工作描述了一种地面生成太阳粒子事件的方法。作为原理证明，设计了一种具有特定漏斗形周期结构的被动光束调制器，用于将单能质子束转换为光谱质子能量分布，模仿 1972 年 8 月的太阳粒子事件，该事件被称为最强的 SPE 事件记录。研究或粒子治疗设施中的许多现有粒子加速器可以产生所需的 220 MeV 质子束。逐步描述了调制器的规划、制造和测试。其正确制造和太阳粒子事件模拟器的特性通过实验和蒙特卡罗模拟进行了测试。未来的调制器将遵循相同的概念，进行一些细微的调整，例如更大的横向延伸。截至目前，研究界可以使用所提出的光束调制器在 GSI 进行太阳粒子事件条件下的曝光实验。此外，研究人员可以使用和应用所描述的概念来设计和打印其个性化调制器，以重现任何所需的太阳粒子事件光谱或向作者请求提供的调制器几何形状。