Health protection – collection

Medical radiation: uses, dose measurements and safety advice

The use of ionising radiation in medicine, including recommended dose measurements and guidance on safe radiology practice.

Ionising radiation is used in medicine in 3 ways:

  • diagnostic radiology, which uses x-ray machines to obtain images of the inside of the patient’s body
  • nuclear medicine, which uses radioactive substances introduced into the patient for diagnosis or treatment
  • radiotherapy, which uses many types and sources of ionising radiation to cure or relieve symptoms of cancer and other diseases

These 3 areas are covered by the Ionising Radiation (Medical Exposure) Regulations 2000, which provide a framework to protect patients.

Medical radiation: risks and safety advice

  1. Ionising radiation from medical imaging examinations: safety advice

    • 1 August 2014
    • Guidance
  2. Medical radiation: patient doses

    • 4 September 2008
    • Guidance
  3. Medical x-rays: radiation risks by age and sex of patient

    • 1 October 2011
    • Research and analysis

Nuclear medicine

There’s a dedicated committee, Administration of Radioactive Substances Advisory Committee (ARSAC), to advise the government on nuclear medicine.

  1. ARSAC Notes for Guidance: good clinical practice in nuclear medicine

    • 17 April 2014
    • Guidance


  1. Safer radiotherapy: error data analysis

    • 29 May 2015
    • Research and analysis
  2. Radiotherapy: good practice in error reporting

    • 1 August 2010
    • Guidance
  3. Radiotherapy errors and near misses: biennial report

    • 28 November 2014
    • Research and analysis
  4. Safer radiotherapy: supplementary survey analysis

    • 23 December 2014
    • Research and analysis