Photon Beamline Frontends for the PETRA III Extension Project

The photon beamline frontend design for the new insertion device (ID) beamlines of the PETRA III extension project will be presented. The design is based on the concepts developed for the photon beamline frontends at PETRA III. This generic design approach minimized the number of specialized components for all beamlines. The girder concept with kinematic mounts at each girder allowed a fast and reliable installation phase. The extension beamlines are located in two new additional buildings. There will be 4 sectors with two undulator IDs in each sector with a canting angle of 20mrad between the insertion devices. Additionally, two straight sections and a bending magnet chamber will be modified: one straight section will be transformed to a side station sector, the straight section with the 40m long damping wiggler will be used as a hard X-ray source, and the bending magnet will serve as a soft-X-ray source