A linear accelerator (LINAC)
Photograph by National Cancer Institute, 2020

A linear accelerator (LINAC) for stereotactic radiosurgery (SRS). It is a sophisticated medical device used in radiation oncology to deliver precisely targeted radiation therapy to tumours, typically in the brain or spine. This non-invasive procedure utilises highly focused radiation beams to treat tumours while sparing surrounding healthy tissue, requiring advanced imaging techniques such as CT or MRI for precise tumour localisation. LINAC-based SRS systems are equipped with specialised accessories like multi-leaf collimators and image-guidance systems to ensure accurate radiation delivery, with complex treatment planning software allowing customisation of treatment plans based on tumour characteristics.


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