MEASUREMENTS OF SCATTERING PARAMETERS OF THE He(41,3F) STATE HK Rose, AG Mikosza and JF Williams Centre for Atomic, Molecular and Surface Physics, Physics Department, The University of Western Australia, Perth, WA 6907, Australia. Progress towards the measurement of the Stokes parameters and the subsequent deduction of the scattering amplitudes and phases for the electron-impact excited singlet-triplet mixed He(41,3F) state will be reported. The feasibilty of observing the modulations in the polarised photon signals will be presented.