Show Summary Details
Page of

Quality assurance in radiotherapy 

Quality assurance in radiotherapy
Chapter:
Quality assurance in radiotherapy
Author(s):

T Jordan

and E Aird

DOI:
10.1093/med/9780199573356.003.0170
Page of

PRINTED FROM OXFORD MEDICINE ONLINE (www.oxfordmedicine.com). © Oxford University Press, 2016. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single chapter of a title in Oxford Medicine Online for personal use (for details see Privacy Policy and Legal Notice).

date: 20 October 2019

The only real mistake is the one from which we learn nothing.

John Powell, composer

A radical radiotherapy dose of 70Gy is over 3,500 times the 20mSv annual limit of exposure for a worker, and around 10 to 15 times the whole body fatal dose that might be received, from a nuclear accident or weapon detonation. The twin factors of fractionation and restriction of exposure by collimation and targeting in radiotherapy permit effective use of this lethal potential, and as accuracy in delivery also increases are now allowing study of the effectiveness of even higher ‘dose escalation’ regimes. Nevertheless the potential for damage to the patient is high and as techniques have become more complex the scope for a procedural or systematic error have increased. As the delivery has become less transparent to the user, control has increasingly come to rely on computer management and a procedural system of control and checking....

Access to the complete content on Oxford Medicine Online requires a subscription or purchase. Public users are able to search the site and view the abstracts for each book and chapter without a subscription.

Please subscribe or login to access full text content.

If you have purchased a print title that contains an access token, please see the token for information about how to register your code.

For questions on access or troubleshooting, please check our FAQs, and if you can't find the answer there, please contact us.