Ionising radiation occurs as either electromagnetic rays (such as X-rays and gamma rays) or particles (such as alpha and beta particles). It occurs naturally (e.g. from the radioactive decay of natural radioactive substances such as radon gas and its decay products) but can also be produced artificially. Everyone receives some exposure to natural background radiation.
It is used or occurs in the following work settings
* Medicine (for diagnosis and treatment)
* Industry (for measurement and non-destructive testing)
* Power generation
* Research and teaching
Exposure to ionising radiation can cause alter human cells. It can cause radiation bunrs, poisoning and lead to cancer. It can be dangerous to unborn babies.
Exposure from a source. Alternatively, ingesting radioactive material, which can be particularly bad because it is difficult to stop the exposure.
Ionising Radiation Regulations 1999 require employers to make exposure is restricted as far as reasonable practicable and is kept below dose limits. They require the appointment of Radiation Protection Advisers who have to achieve competence in the management of risk due to ionising radiation.
Classified people have a legal duty to wear a dosemeter
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