Machine-Detector Interface at CLIC

The aim of the Compact Linear Collider (CLIC) study is to design a high-energy linear e+e- collider. The effort is focused on an accelerator with a centre-of-mass energy of Ecm= 3 TeV and a luminosity of L=1035cm-2s-1. Careful study of the expected background in the interaction point (IP) of this machine is necessary. In CLIC, the background sources are expected to be more severe than in other studies like JLC, NLC and TESLA because of the higher luminosity, higher energy and stronger beam-beam effects. Coherent pair creation, which is almost completely absent at lower energies, will be very important. This paper gives an overview of the current status of the background calculations including the corresponding detector simulations.