The Diagnostic System of TTF II

The TESLA Test Facility (TTF) phase II will be the second LINAC at the DESY, based on TESLA accelerator technology[1]. The goal of this machine is twofold: Test and demonstrate the performance of the technology developed for the TESLA linear collider. Furthermore, the excellent beam quality allows to drive a SASE FEL to produce soft X-rays for a 4th Generation Light Source. This paper presents the design of the diagnostic systemfor TTF II, and will give a brief overview over their variety and status