Angular distributions of relativistic electrons under channeling in half-wavelength crystal and corresponding radiation

Abstract

New experiments on channeling of 255MeV electrons in a half-wavelength crystals (HWC) were performed at SAGA Light Source facilities. The simulations of trajectories for (220) and (111) planar channeling in Si were performed using the computer code BCM-1.0. Comparison of experimental and theoretical results shows a good agreement. The results of calculations of spectral distribution of radiation in forward direction (θ=0°) from 255MeV electrons at (220) channeling in HWC silicon are presented. Qualitative comparison with radiation spectrum from an electron moving in an arc is performed.