Particle accelerator where charged particles repeatedly pass..., in which the frequency of the acceleration voltage decreases after a while so that it adjusts exactly to the orbits of the accelerated particles. The decrease in particle acceleration results from the mass increase with Ability to do work or diffuse heat. The unit of energy is th... as described in specific relativity theory. About 700 Megaelectron volt, 1,000,000 eV. for protons are achievable.