2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/86699Photon beams at photon colliders are very narrow, powerful and can not be deflected. For the beam dump at the TESLA-like collider we suggest to use a long gas (Ar) spoiler in front of the water absorber, this solves the overheating and mechanical stress problems. The neutron background at the interaction point is estimated.2 pages, Latex, 2 .eps figures. To be published in Proc. of the the International Conference on Linear Colliders, LCWS04, Paris, April 19-23, 2004Instrumentation and Detectorstext