The machine then listens and processes the signals given off by the hydrogen atoms as the protons flip back in order to produce a 3D image of the interior of the patient's body.
[3] The gantry of an external beam radiotherapy machine moves a radiation source around a patient.
The rectangular screen on the right side of the gantry is a cone beam x-ray detector, which is used to help position a patient prior to treatment.
The target stops the electrons, and the sudden deceleration results in bremsstrahlung radiation of X-rays.
Prior to treatment, the cone beam x-ray system is used to align the patient's tumor with the radiation.