The theory of beam deflection by the terrace crystal field forming the miscut surface was developed. The phenomenology of proton channeling and quasichanneling has been applied to describe new features of the beam deflection. The computer experiment results on proton beam deflection by the crystal miscut surface are presented. The analysis predicts efficient beam deflection by the acute crystal end due to repelling miscut potential.
A.A. et al. (Tue,) studied this question.