Säteilynlähde

Säteilynlähde refers to any object or phenomenon that emits radiation. This radiation can take many forms, including electromagnetic waves such as light, radio waves, X-rays, and gamma rays, as well as particle radiation like alpha particles, beta particles, and neutrons. The nature of the radiation emitted depends on the source.

Natural säteilynlähteitä are prevalent in the environment. The sun is a primary example, emitting vast amounts of electromagnetic radiation across the spectrum. Radioactive isotopes found naturally in the Earth's crust and atmosphere, such as uranium and radon, are also sources of radiation. Cosmic rays originating from outer space are another significant natural source.

Artificial säteilynlähteitä are created by human activities. These include medical applications like X-ray machines and radiotherapy devices, which utilize controlled radiation for diagnosis and treatment. Industrial applications, such as those involving radioactive tracers or non-destructive testing, also employ artificial sources. Nuclear power plants and research reactors generate radiation as a byproduct of nuclear fission. Scientific instruments designed to produce specific types of radiation for research purposes also fall into this category. Understanding säteilynlähde is crucial for radiation safety, scientific research, and technological development.