What should you know about a GE linear accelerator?

A linear accelerator, often called a linac, generates radiation and directs it from a rotating treatment head. The care team uses scans and planning software to shape the beam and set the treatment angles. The machine does not make the patient radioactive. Treatment is commonly delivered in a series of visits, although the schedule depends on the tumour, treatment aim, and plan. The team checks positioning before each session.

Attend the planning appointment so the team can create an accurate treatment position and, when needed, a custom support or mask. Wear comfortable clothing and follow instructions about skin care, medicines, and eating. During treatment, remain still and breathe as instructed. The technologists leave the room during beam delivery but watch and communicate with you. The session itself is not usually felt, though side effects can develop later.

Contact the radiation team about worsening pain, skin breakdown, persistent vomiting, inability to drink, new weakness, confusion, or breathing difficulty. Urgent help is needed for severe breathlessness, sudden neurological change, or uncontrolled bleeding. Side effects vary with the body region treated and may appear during treatment or after it, so keep the team’s contact details available between visits.

What is the aim of my radiotherapy? Which body tissues will be protected? How many visits are planned, what side effects should I watch for, and who should I call outside the appointment?