J an 1 99 8 Fiber technology applications for a future e + e − linear collider detector

The advantages and possibilities of fiber technology for the detection of particles in 500 GeV ee reactions are considered. It is suggested to build a fast trigger which could be used also for intermediate tracking. A fiber preshower in front of the electromagnetic calorimeter would allow to identify electrons and photons with a space precision better than 100 μm. INTRODUCTION ee reactions have particular advantages for the study of particle properties and interaction pecularities. That is the reason for the worldwide discussion about problems and possibilities of future ee linear colliders in the energy range between 500 – 1500 GeV [1]. Detectors at such colliders have to handle very short bunch crossing times and/or tremendous background rates originating from new sources due to the strongly collimated beams. All these questions were studied in detail during an Joint ECFA/DESY workshop in 1996 [2]. The following considerations arised from discussions during this workshop.