Design specification for the European Spallation Source neutron generating target element. - Aguilar, A.; Sordo, F.; Mora, T.; Mena, L.; Mancisidor, M.; Aguilar, J.; Bakedano, G.; Herranz, I.; Luna, P.; Magan, M.; Vivanco, R.; Jimenez-Villacorta, F.; et al. (Nuclear Instruments & Methods in Physics Research Section A, 2017)