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Ionizing radiation penetration

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Ionizing radiation ionising radiation consists of subatomic particles or electromagnetic waves that have sufficient energy to ionize atoms or molecules by detaching electrons from them. Gamma rays , X-rays and the higher ultraviolet part of the electromagnetic spectrum are ionizing radiation, whereas the lower energy ultraviolet , visible light , nearly all types of laser light, infrared , microwaves , and radio waves are non-ionizing radiation. Typical ionizing subatomic particles due to radioactive decay include alpha particles , beta particles and neutrons and almost all are energetic enough to be ionizing. Secondary cosmic particles produced after cosmic rays interact with Earth's atmosphere include muons , mesons , and positrons. Cosmic rays and the decay of radioactive isotopes are the primary sources of natural ionizing radiation on Earth contributing to background radiation. Ionizing radiation is also generated artificially by such as X-ray tubes , particle accelerators , and nuclear fission.
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Ionising radiation at workplaces

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α, β, γ Penetration and Shielding | Harvard Natural Sciences Lecture Demonstrations

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α, β, γ Penetration and Shielding

Ionising radiation can be described as the transfer of energy in the form of particles such as alpha and beta particles or electromagnetic waves such as X-rays and gamma rays of a wavelength of nanometres or less or a frequency of 3 x hertz or more capable of producing ions directly or indirectly. Ionising radiation can occur naturally e. Ionising radiation has many uses in industry, such as energy production, manufacturing, medicine and research and produces many benefits to society.
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The interactions of the various radiations with matter are unique and determine their penetrability through matter and, consequently, the type and amount of shielding needed for radiation protection. Being electrically neutral, the interaction of gamma rays with matter is a statistical process and depends on the nature of the absorber as well as the energy of the gamma. There is always a finite probability for a gamma to penetrate a given thickness of absorbing material and so, unlike the charged particulate radiations which have a maximum range in the absorber where all are stopped regardless of source strength, some gammas will always get through and, given a strong enough source, a lot may get through.
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