Radiotherapy Tim Loughton To ask the Secretary of State for Health what the ratio of linear accelerators to catchment area population is in each hospital trust area operating such equipment in England. [120379] Miss Melanie Johnson the number of radiotherapy centre treatment machines (linacs) serving catchment populations is published at www.canceruk.net/reports/ rtsurvey2002/index.htm.This information was derived from a survey of radiotherapy departments carried out in June 2002 by the National Cancer Services Analysis Team under the direction of the Royal College of Radiologists.Three major initiatives are on-going in the provision of radiotherapy treatment machines which are leading to an increase in the numbers of such machines in clinical use.