Measurement of the Electric Form Factor of the Neutron at MAMI

At the Mainz Microtron the electric form factor of the neutron, GE,n, has been measured in two kinds of double polarisation experiments. The most recent results have been obtained by recoil polarimetry from the quasi-elastic D(e→,e′n→)p reaction at squared four-momentum transfers Q2=0.3,0.6, and0.8(GeV/c)2. A further data point at 0.67(GeV/c)2 has been extracted from quasi-elastic scattering of polarised electrons on H→e3. We present the methods and results of our experiments as well as an overview on the precise GE,n data available at present.