Diagnostics at the ELBE Bremsstrahlung Facility

The ELBE (Electron Linear accelerator with high Brilliance and low Emittance) machine is currently under transition from commissioning to regular user operation. The linac produces an up to 40 MeV, 1 mA (CW) electron beam which is used to generate various kinds of secondary radiation. While IR-FEL and X-ray facilities are still under construction, comprehensive nuclear physics experiments at the bremsstrahlung facility have been conducted. Both, to meet the experimentor’s demands on beam quality, stability and reproducibility and to ensure a safe operation of the machine, several diagnostic elements, such as backward OTR viewers, radiator temperature diagnostics, stripline detectors to monitor the beam incidence angle on the radiator and a four-quadrant loss monitor were developed, installed and tested. These elements are described and results are presented in this paper.