A 1.8T PERMANENT-MAGNET WIGGLER FOR MAX-LAB

The design and construction of a permanent magnet wiggler for generati on of soft X-rays at the new 1.5 GeV electron storage ring MAX II in M AX-lab, Lund, Sweden is reported. The 2.65 meters long device has 27 f ull field poles with a peak field of 1.8 tesla, which produce a total power of 2.2 kW of soft X-rays (up to 15 keV photon energy) at the nom inal beam current of 200 mA. The device was installed in the MAX II st orage ring in 1994, to serve in the commissioning phase of the acceler ator. The corresponding beamline should become operational in 1996.