2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/191831For the planned International Linear Collider it is intended to have both -- electron and positron -- beams polarised. This offers a great benefit for many physics studies, but also provides a challenge for the engineering of the machine. A polarised positron source that meets the machine parameters is topic of current design studies and prototype experiments.Presented at the XXXI International Conference of Theoretical Physics, "Matter to the Deepest", Ustron, Poland, September 5--11, 2007High Energy Physics - Experimenttext