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Research and analysis

Safer radiotherapy: triannual event analysis and learning

Analysis and learning from radiotherapy and near miss data reported voluntarily by UK radiotherapy providers and the relevant reporting authorities.

Updates to this page

From:
UK Health Security Agency
Published:
30 July 2014
Last updated:
25 September 2026
Show all updates

  1. Added issue 50.

  2. Added issue 49.

  3. Added issue 48.

  4. Added issue 47.

  5. Changed 'error' to 'event' in line with new terminology.

  6. Added issue 46.

  7. Added issue 45.

  8. Added issue 44.

  9. Added issue 43.

  10. Added issue 42.

  11. Added issue 41.

  12. Added issue 40.

  13. Added latest report.

  14. Added issue 38.

  15. Added issue 37.

  16. Added issue 36 and archived previous reports.

  17. Added 'Safer RT: triannual error analysis and learning report, issue 35'.

  18. Added 'Safer RT: triannual error analysis and learning issue 34'

  19. Added 'Radiotherapy error data analysis August to November 2020, issue 33'.

  20. Added issue 32 and supplementary data analysis.

  21. Added issue 31 supplementary data analysis.

  22. Archived supplementary error data analysis quarterly report, issues 13 to 22.

  23. Added 'Safer radiotherapy: supplementary error data analysis' (August to November 2019, issue 30) and newsletter issue 30 link.

  24. Added issue 29 and supplementary data analysis.

  25. Added issue 28 and supplementary data analysis.

  26. Added issue 27 and supplementary data analysis.

  27. Added Safer Radiotherapy issue 26 and supplementary data analysis.

  28. Added 'Safer Radiotherapy issue 25' and supplementary data analysis.

  29. Added 'Safer Radiotherapy issue 24' and supplementary data analysis.

  30. Added Safer Radiotherapy issue 23 and supplementary data analysis.

  31. Added Safer Radiotherapy issue 22 and supplementary data analysis.

  32. Added Safer Radiotherapy issue 21 and supplementary data analysis.

  33. Added Safer Radiotherapy issue 20 and supplementary data analysis.

  34. Published issue 19, January to March 2016.

  35. Published issue 18 of safer radiotherapy newsletter and supplementary data analysis report.

  36. Added issue 17 of summary of error data analysis and supplementary data analysis report.

  37. Added issue 16 of summary of error data quarterly analysis and supplementary error data analysis quarterly report.

  38. Added: summary of error data quarterly analysis (January 2014, issue 15); supplementary error data analysis quarterly report: September 2014 to November 2014 (issue 15)

  39. The summary of error data quarterly analysis (October 2014, issue 14) and supplementary error data analysis quarterly report: June 2014 to August 2014 (issue 14) have been added.

  40. First published.

Documents

Safer RT: triannual event analysis and learning report, issue 50

PDF, 506 KB, 17 pages

This file may not be suitable for users of assistive technology.

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If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Safer RT: triannual event analysis and learning report, issue 49

PDF, 520 KB, 19 pages

This file may not be suitable for users of assistive technology.

Request an accessible format
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Safer RT: triannual event analysis and learning report, issue 48

PDF, 508 KB, 18 pages

This file may not be suitable for users of assistive technology.

Request an accessible format
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Safer RT: triannual error analysis and learning report, issue 47

PDF, 535 KB, 19 pages

This file may not be suitable for users of assistive technology.

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If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Safer RT: triannual error analysis and learning report, issue 46

PDF, 670 KB, 27 pages

This file may not be suitable for users of assistive technology.

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If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Safer RT: triannual error analysis and learning report, issue 45

Ref: GOV-18017

PDF, 694 KB, 26 pages

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If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Safer RT: triannual error analysis and learning report, issue 44

Ref: GOV-17385

PDF, 729 KB, 29 pages

This file may not be suitable for users of assistive technology.

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If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Safer RT: triannual error analysis and learning report, issue 43

Ref: GOV-16730

PDF, 645 KB, 29 pages

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If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Safer RT: triannual error analysis and learning report, issue 42

Ref: UKHSA publication gateway number GOV-16030

PDF, 640 KB, 29 pages

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If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Safer RT: triannual error analysis and learning report, issue 41

Ref: UKHSA publication gateway number GOV-15477

PDF, 630 KB, 27 pages

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If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Safer RT: triannual error analysis and learning report, issue 40

Ref: UKHSA publication gateway number GOV-14750

PDF, 641 KB, 27 pages

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If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Safer RT: triannual error analysis and learning report, issue 39

Ref: UKHSA publications gateway number GOV-14055

PDF, 878 KB, 29 pages

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If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Safer RT: triannual error analysis and learning report, issue 38

Ref: UKHSA publication gateway number GOV-13338

PDF, 687 KB, 28 pages

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If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Safer RT: triannual error analysis and learning report, issue 37

Ref: UKHSA publication gateway number GOV-12314

PDF, 646 KB, 29 pages

This file may not be suitable for users of assistive technology.

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If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Safer RT: triannual error analysis and learning report, issue 36

Ref: UKHSA publication gateway number GOV-1118

PDF, 664 KB, 29 pages

This file may not be suitable for users of assistive technology.

Request an accessible format
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email publications@ukhsa.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Details

This analysis, carried out by the UK Health Security Agency (UKHSA), has been reviewed by the Patient Safety in Radiotherapy Steering Group, whose comments have been incorporated into this document.

Previous reports are available online:

Safer radiotherapy e-bulletins

Previous editions of our Safer radiotherapy e-bulletins are available online.

The aim of the e-bulletin is to provide a regular update on the analysis by UKHSA of radiotherapy event (RTE) reports.

Subscribe to the Safer radiotherapy publications.

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