Cherenkov radiation is predicted by the "standard model" of particle physics and is also observed in the real world, most often as a faint blue glow emanating from the cores of nuclear reactors.

In recent years, scientists have been scaling up the power of the X-ray, using massive particle accelerators or synchrotrons to deliver much larger radiation doses.

Positron and electron (particle and anti-particle) can annihilate in collision turning into electromagnetic radiation.