The National Cancer Registration and Analysis Service (NCRAS) has updated data from the Radiotherapy Dataset (RTDS) on radiotherapy activity in hospitals in England. Please use the following links to switch between our new interactive tools. The first tool shows radiotherapy delivery in the form of episodes and attendances for different disease treatments and cancer alliances for years from 2009 to 2022, and the second shows the proportion of treatments using intensity modulated radiotherapy for years from 2014 to 2022.