X rays, gamma rays, alpha particles, and beta particles are ionizing radiation. Ionizing radiation has a lot of energy that gives it the ability to cause changes in atoms—a process called ionization. Radio and TV signals, microwaves, and laser light are non ionizing types of radiation.
The other types of EM radiation that make up the electromagnetic spectrum are microwaves, infrared light, ultraviolet light, X-rays and gamma-rays. You know more about the electromagnetic spectrum than you may think. The image below shows where you might encounter each portion of the EM spectrum in your day-to-day life. Electromagnetic radiation can be described in terms of a stream of mass-less particles, called photons, each traveling in a wave-like pattern at the speed of light. Each photon contains a certain amount of energy. The different types of radiation are defined by the the amount of energy found in the photons. Radio waves have photons with low energies, microwave photons have a little more energy than radio waves, infrared photons have still more, then visible, ultraviolet, X-rays, and, the most energetic of all, gamma-rays Illustration of the relative abilities of three different types of ionizing radiation to penetrate solid matter. Typical alpha particles (α) are stopped by a sheet of paper, while beta particles (β) are stopped by an aluminium plate. Gamma radiation (γ) is damped when it penetrates lead. Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Like all other electromagnetic waves, they travel at the speed of light. Naturally occurring radio waves are made by lightning, or by certain astronomical objects. In the broad category of radiation, the broad definition includes all of those things and more. We need to narrow that broad definition of radiation to talk about the type of radiation that is the focus of information on this site. Radiation is energy in the form of waves (beams) or particles. Radiation waves are generally invisible, have no weight or odor, and have no positive or negative charge. Radioactive particles are also invisible, but they have weight (which is why they are called a particle) and may have a positive or negative charge. Gamma rays, X-rays, and the higher ultraviolet part of the electromagnetic spectrum are ionizing, whereas the lower ultraviolet part of the electromagnetic spectrum, visible light (including nearly all types of laser light), infrared, microwaves, and radio waves are considered non-ionizing radiation.  Radiation is often categorized as either ionizing or non-ionizing depending on the energy of the radiated particles. Ionizing radiation carries more than 10 eV, which is enough to ionize atoms and molecules, and break chemical bonds. Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Like all other electromagnetic waves, they travel at the speed of light. Naturally occurring radio waves are made by lightning, or by certain astronomical objects. The lower-energy, longer-wavelength part of the spectrum including visible light, infrared light, microwaves, and radio waves is non-ionizing; its main effect when interacting with tissue is heating. This type of radiation only damages cells if the intensity is high enough to cause excessive heating. Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Like all other electromagnetic waves, they travel at the speed of light. Naturally occurring radio waves are made by lightning, or by certain astronomical objects. X rays, gamma rays, alpha particles, and beta particles are ionizing radiation. Ionizing radiation has a lot of energy that gives it the ability to cause changes in atoms—a process called ionization. Radio and TV signals, microwaves, and laser light are nonionizing types of radiation. Radiation is energy in the form of waves (beams) or particles. Radiation waves are generally invisible, have no weight or odor, and have no positive or negative charge. Radioactive particles are also invisible, but they have weight (which is why they are called a particle) and may have a The radiation one typically encounters is one of four types: alpha radiation, beta radiation, gamma radiation, and x radiation. Neutron radiation is also encountered in nuclear power plants and high-altitude flight and emitted from some industrial radioactive sources. 1 Alpha radiation is a heavy, very short-range particle and is actually an ejected helium nucleus. 2  Some characteristics of alpha radiation are: 3  Examples of some alpha emitters: radium, radon, uranium, thorium. 4  Most alpha radiation is not able to penetrate human skin. Three types of radioation-Alpha, Beta, Gamma. There are three primary types of radiation: 1  Alpha-these are fast moving helium atoms. 2  They have high energy, typically in the MeV range, but due to their large mass, they are stopped by just a few inches of air, or a piece of paper. 3  Beta-these are fast moving electrons. There are three primary types of radiation: 1  Alpha-these are fast moving helium atoms. 2  Beta-these are fast moving electrons. 3  Gamma-these are photons, just like light, except of much higher energy, typically from several keV to several MeV.
http://imagine.gsfc.nasa.gov/science/toolbox/emspectrum1.html https://en.wikipedia.org/wiki/Radiation http://www.radiationanswers.org/radiation-introduction/types-of-radiation.html https://en.wikipedia.org/wiki/Ionizing_radiation https://en.wikipedia.org/wiki/Radiation https://en.wikipedia.org/wiki/Radiation http://www.radiationanswers.org/radiation-introduction/types-of-radiation.html http://hps.org/publicinformation/ate/faqs/radiationtypes.html http://www.blackcatsystems.com/GM/experiments/ex7.html
description of the different types of radiation