2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/27232It is shown analytically and by numerical simulation that the angular distribution of Andreev reflection by a disordered normal-metal -- superconductor junction has a narrow peak at the angle of incidence. The peak is higher than the well-known coherent backscattering peak in the normal state, by a large factor G/G_0 (where G is the conductance of the junction and G_0=2e^2/h). The enhanced backscattering can be detected by means of ballistic point contacts.Instituut-Lorentz, Leiden, The Netherlands, 4 pages, REVTeX-3.0, 3 figuresCondensed Mattertext