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NPL Beginners' Guide - Ionising Radiation

An introduction to ionising radiation and the measurement standards involved.

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Ionising Radiation and Health

Radiation can interact with surrounding matter to produce positively and negatively charged particles (a type of electricity). This process is called ionisation, hence the term ionizing radiation.

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What is ionising radiation? Alpha, beta and gamma

Revision website about ionising radiation and the properties of alpha, beta and gamma

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Radioactive dose

How does ionising radiation affect people, what risks arise from radiation exposure, and how can such risks be minimised? These question and more are addressed on this excellent site all about ...

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Radiation dose chart

A simple chart illustrating the ionising radiation dose a person can receive from various different sources.

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Bananas are radioactive

Short article on why bananas give off relatively high amounts of ionising radiation.

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Synchrotron Radiation

When moving charges spiral in a magnetic field, they produce radiation as a result of their accelerations which is called synchrotron radiation.

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Blackbody Radiation

Blackbody radiation refers to an object or system which absorbs all radiation incident upon it and re-radiates energy which is characteristic of this radiating system.

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Hyperphysics - Radiation Risk

Units of radiation, description of risk of radiation, comparing old and new units with good links to other relevant parts of the site.

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What Is Ionizing Radiation?

This fact sheet describes ionizing radiation, how it behaves and how it can affect human health. Three types of ionizing radiation are alpha particles, beta particles, and gamma rays.

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