Beamline Front‐End For The In‐Vacuum Minipole Undulator At The 2.5‐GeV Photon Factory Storage Ring

The straight‐section upgrade project of the Photon Factory created four new short straight sections capable of housing in‐vacuum minipole undulators. The first minipole undulator was installed at the 2.5‐GeV Photon Factory storage ring in the summer of 2005. The beamline front‐end including the graphite filter and Be windows system is described in this paper.