Spatial and angular distribution of 255 MeV electrons and positrons at (100) planar channeling in the Si crystals; RReps'11. Radiation from Relativistic Electrons in Periodic Structures - Abdrachitov S. V. Sergey Vladimirovich; Bogdanov O. V. Oleg Viktorovich; Pivovarov Yu. L. Yuriy Leonidovich; Tukhfatullin T. A. Timur Ahatovich (2011, 2011)