Polarized Atomic Hydrogen Target at MESA

One aim for the new electron accelerator MESA is to measure the weak mixing angle in electron proton scattering with high precision. This results in a requirement for beam polarization measurement of deltaP/P approx 0.5%. The Moller polarimeter proposed by V. Luppov and E. Chudakov opens the way to reach a sufficiently accurate measurement. The polarized atomic hydrogen target is under construction. The current status including recent modifications is presented.