Further research by scientists like Ernest Rutherford categorized radioactive emissions into alpha, beta, and gamma rays, ... X-Rays: The Discovery that Revolutionized Science (1895) Posted: March ...

Alpha radiation is actually an entire helium nucleus (two protons and two neutrons) splintered off larger elements. Beta radiation is an electron ejected when a proton turns into a neutron.

The use of other radiations (except X-rays), for example, alpha-and beta-rays, recoil atoms and accelerated ions for similar purposes does not seem to have been described.

What made the pulses puzzling to the astronomers was that they came in the form of both radio waves and X-rays. The discovery marks the first time that such objects, called long-period transients ...