What is radiation?
Release time:
2021-05-27
Like light, radiation has energy. As it travels through matter, it transfers and exchanges energy and interacts with matter.
Like light, radiation has energy. As it travels through matter, it transfers and exchanges energy and interacts with matter. One of the main modes of action is to ionize or excite atoms in a substance, which is called ionization. Generally, we divide radiation into ionizing and non-ionizing radiation based on the energy level of the radiation or the ability to ionize the substance:
Non-ionizing radiation: refers to the radiation of low-energy substances that cannot be ionized, such as sunlight, light, infrared rays, microwaves, radio waves, radar waves, etc. To
Ionizing radiation: refers to high-energy radiation to ionize substances.
Ionizing radiation is divided:
(1) particle radiation, such as α, β, neutron radiation, etc;
(2) Wave radiation, such as gamma radiation and x-rays. To
In general, by radiation or radiation is meant ionizing radiation.
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