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Ionising Radiation
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  Ionising Radiation
Ionising radiation includes both electromagnetic radiation – such as X-rays and gamma radiation – and particle radiation – such as alpha, beta and neutron radiation. Its main feature is that it has enough energy to ionise atoms and molecules, i. e. to generate positively and negatively charged particles from electrically neutral atoms and molecules. When going through matter – e. g. through a cell or an organism – ionising radiation gives off energy. If this energy is high enough serious radiation damages can occur. Ionising radiation is both part of nature and the result of human activities.Natural radioactive substances exist in man and in the soils and rocks of the earth´s crust. In the medical field, in research, technology and through using nuclear energy radioactive substances are used purposefully and generated artificially.
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Defence against nuclear hazards
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The defence against nuclear hazards involves preparing for and responding to situations in which radioactive material is out of regulatory control, in particular cases where the material is being used maliciously. This also covers the loss or discovery of radioactive materials in the case that this could possibly lead to danger to people or damage to property.
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