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The last kind of radiation is electromagnetic radiation, like X-rays and gamma rays. They are probably the most familiar type of radiation because they are used widely in medical treatments. These rays are like sunlight, except they have more energy. Unlike the other kinds of radiation, there is no mass or charge. The amount of energy can range from very low, like in dental x-rays, to the very high levels seen in irradiators used to sterilize medical equipment.
Non-ionizing radiation is a collective term for several types of radiation which are not harmful in low dosages and without long-term exposure. Non-ionizing radiation cannot cause ionization in biological systems (body cells), even at very high intensity levels.This is the major difference with ionizing radiation.nnex 1: Information about non-ionizing radiation. Radiation is characterized by the frequency of the radiation (in Hertz) and the wavelength of the radiation (in metres). Non-ionizing radiation has a frequency lower than 3x10 15 Hertz (Hz), which corresponds with a wavelength larger than 100 nm.