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.