THE MAGNETS OF THE METROLOGY LIGHT SOURCE IN BERLIN-ADLERSHOF

摘要

The German National Metrology Institute (PTB) in close cooperation with BESSY II (Berlin) are currently carrying out the construction the low-energy "Metrology Light Source" (MLS) (Fig.1) as a synchrotron radiation facility situated in the close vicinity of BESSY II. Constructions of the MLS facility are in progress and nearly finished [1]. The user operation is scheduled to begin of 2008. Dedicated to metrology and technology development in the UV and EUV spectral range the MLS will close the gap that is existent since the shutdown of BESSY I [2]. A 100 MeV microtron delivered by Danfysik A/S in Jyllige (Denmark) will provide the electrons for the MLS. The total circumference of the MLS is 48 m. The MLS has two long and two short straight sections. It is a asymmetric double bend achromat. The electron energy is ramped to the desired value between 200 MeV and 600 MeV. The expected life time for electron energy between 200 MeV and 600 MeV at maximum beam current of 200 mA is between 1 hour and 10 hour, respectively.