[en] A status report is given on experiment 91-12, which is the first internal target experiment performed at the internal target facility of NIKHEF. The aim of this experiment is to measure the asymmetry in the (e,e'p) reaction from a tensor polarized deuterium target with unpolarized electrons. An update on the experimental setup and results of an extensive set of test measurements are presented

[en] The ratio of neutron and proton yields at quasifree kinematics was measured for the reactions ²H(e,e'n) and ²H(e,e'p) at momentum transfers Q²=0.125, 0.255, 0.417, and 0.605(GeV/c)², detecting the neutron and the proton simultaneously in the same scintillator array. The neutron detection efficiency was measured in situ with the ¹H(γ,π⁺)n reaction. From this the ratio R of ²H(e,e'n) and ²H(e,e'p) cross sections was determined and used to extract the neutron magnetic form factor Gⁿ_M in a model insensitive approach, resulting in an inaccuracy between 2.1% and 3.3% in Gⁿ_M