  We present a finite element calculation of the magnetic field (MagNet
software) taken with the newly proposed PASTIS Coil, which uses a wide-angle
banana shaped 3He Neuton Spin Filter cell (NSF) to cover a large range of
scattering angle. The goal of this insert is to enable XYZ polarization
analysis to be installed on the future thermal time-of flight spectrometer
TOPAS.
