Question

The machine used for radiotherapy is called as _________

(a) Therapeutic X-Ray machine

(b) Linear Accelerator

(c) Diathermy Machine

(d) Radioactive Ultrasound Machine

I had been asked this question in homework.

Asked question is from Radiation Therapy in section Radiation Therapy of Clinical Science

Answer 1

Correct answer is (b) Linear Accelerator

Best explanation: Linear accelerator, also called as linac is used to destroy the cancer cells with the help of radiations. Higher and more sophisticated versions can destroy at the surface level itself and use electrons rather than photons. The linac used the photons and the electrons to damage the DNA of the cancerous cells. Non cancerous cells are able to repair their DNA but the cancerous cells fail to do so.