Focusing all the synchrotron radiation (2π radians) from an electron storage ring on a single point without time distortion

The geometrical-optical analysis of synchrotron radiation shows that it is possible to define a mirror able to focus all the emitted light by an electron storage ring on a single point lying anywhere in space, keeping unchanged the typical time patterns of the radiation. Because of the electron ultrarelativistic conditions, the electron “orbital path” is assimilated to an “underground bent photon path”. We prove then that the focusing condition is simply given by establishing the invariance of the photon path: “optical photon path” + “underground bent photon path” = constant. Some selected numerical examples show that it is possible to collect huge amounts of radiation producing extremely high excitation densities in a given small volume.