The PADME magnet
The positron beam (~104 particles/pulse) passes almost undisturbed through the PADME Carbon target. Therefore, a magnetic field of a moderate strength (0.5 T) is necessary to sweep it out from the acceptance of the e.m. calorimeter. A magnet with the requested characteristics has been found at CERN within the spare dipoles of the SPS transport line (MBP-S), and it has been shipped to LNF at the end of 2015. During 2016, the dipole vertical gap has been increased to 230 mm, to better suite the experiment needs, and a campaign of measurements to map the field has been performed. The figures show a picture of the magnet and the plots of the field map measurements.
