Cascade simulation studies for the momentum cleaning insertion of LHC

This note describes the details and the first results of the cascade simulations in the momentum cleaning section. The simulation scheme is the same as in the previous studies for the betatron cleaning insertion. Annual doses to the magnet coils are estimated from the calculated energy deposition densities assuming primary losses of 10^16 7TeV protons per beam and per year in the momentum collimators. Shielding screens and insertions to reduce high doses to the coils of separation and corrector dipoles are discussed. The parameters of lateral leakage of hadrons are presented and compared to the same data for the betatron cleaning insertion.