Dechanneling of relativistic protons and nuclei in straight and bent crystals. Rechanneling role

摘要

Planar dechanneling of relativistic protons and Pb nuclei with the same momentum per unit charge p(sub z) in straight and bent crystals was investigated by simulation. It was shown that the different probability of the recapture into the channeling regime for protons and Pb nuclei infringes the dechanneling length invariance with respect to p(sub z) in the straight crystals, whereas in the bent crystals the approximate invariance occurs. 5 refs., 3 figs. Submitted to the International Symposium on Radiation of Relativistic Electrons in Periodical Structures, Tomsk (RU), 8-12 Sep 1997.