Development on multistrip monitor for nonintercepting measurement of beam geometric moments

The wall current distribution created by a charged particle passing through a beam pipe gives information on the beam profile moments. A coordinate translation has been made to obtain beam centroid moments. The beam current, position and profile moments (in terms of Σ_iρ_iⁿcos n(θ-φ_i)) can be obtained by performing a spatial Fast Fourier Transform on the wall current distribution of a cylindrical multistrip monitor. Computer simulations of the measurement and their results are presented. The accuracy of the measurement is predicted to be better than 0.1%