Peculiarities of coherent transition radiation of electron coagulum accelerated in microtron

The angular distribution of the radiation, excited by the relativistic coagulums, crossing the metallic foil is experimentally studied. The measurements were performed at the angles much higher than the characteristic γ-1 angle. The experiments showed that radiation at high angles has the clearly expressed maximum and asymmetric angular distribution. The numerical calculations of the transition radiation of the coagulum, accelerated in the microtron, are in agreement with the experimental results