High efficiency Bremsstrahlung source. Can we control the quality of Bremsstrahlung source?

By the computerized simulation the efficiency of a new unusual scheme of generation of Bremsstrahlung in which electron beam repeatedly crosses thin target is studied. It is reached by using of special focusing magnetic field, returning scattered electrons at the target. It is shown that in the scheme under consideration almost triple increase of the radiation yield energy and decrease of angular divergences of Bremsstrahlung are observed