2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/7005Magnetic fields in galaxy clusters can be investigated using a variety of techniques. Recent studies including radio halos, Inverse Compton hard X-ray emissions and Faraday rotation measure, are briefly outlined. A numerical approach for investigating cluster magnetic fields strength and structure is presented. It consists of producing simulated rotation measure, radio halo images, and radio halo polarization, obtained from 3-dimensional multi-scale cluster magnetic field models, and comparing with observations.5 pages, 2 Postscript figures. To be published by the Astronomical Society of the Pacific in Highlights of Astronomy, Vol 13, as part of the Proceedings of IAU JD10, Evolution in Galaxy Clusters: A Multiwavelength ApproachAstrophysicstext