Linear Accelerator Functions and Responsibilities

John Kitt, a radiator physicist, introduces the linear accelerator used in radiotherapy at QA Hospital, Portsmouth. He explains its components, including the waveguide and imaging panels, and describes his role in ensuring safe and accurate radiation delivery. The video covers the operation of the accelerator, safety checks, and the process of verifying dose delivery using software. The importance of minimizing side effects and ensuring precise treatment is emphasized.

What is the primary purpose of a linear accelerator in radiotherapy?

• To perform surgeries

• To deliver high doses of radiation

• To monitor heart rate

• To diagnose diseases

Why is the linear accelerator named as such?

• Because it decelerates particles

• Because it accelerates electrons in a linear direction

• Because it accelerates electrons in a circular path

• Because it accelerates protons

What is the function of imaging panels in a linear accelerator?

• To cool down the machine

• To generate electricity

• To image the patient for correct positioning

• To treat the patient

What is the main responsibility of a radiophysicist in radiotherapy?

• To diagnose diseases

• To perform surgeries

• To ensure the safe delivery of radiation doses

• To prescribe medication

How many linear accelerators are mentioned as being in the trust?

• Four

• Three

• Five

• Two

What is the purpose of using a reference patient in the setup process?

• To perform surgeries

• To diagnose diseases

• To check the machine's delivery accuracy

• To train new staff

What is the role of multi-leaf collimators in a linear accelerator?

• To increase the speed of electrons

• To modulate the radiation beam

• To cool down the machine

• To generate electricity

What does the software used in radiotherapy verify?

• The room's lighting

• The machine's temperature

• The accuracy of dose delivery

• The patient's identity

How does the system ensure the correct dose is delivered to the patient?

• By using a CT scan overlay

• By using a thermometer

• By using a blood pressure monitor

• By using a stethoscope

What indicates that the dose delivery has been successful?

• The machine shuts down

• The system shows no issues with delivery

• The room lights blink

• The patient feels better immediately