| Properties | Details |
|---|---|
| SFDA Classification | Class iii |
| Purpose of Use | The Linacs system allocates high-energy electrons to shape the tumor to be treated, destroying cancer cells without affecting the surrounding tissue. |
| Work Location & End-User | Place of work: Department of Oncology (cancer treatment) End user of the device: a doctor, radiologist, dose specialist. |
| Parts & Accessories | Modulator, electronic pistol, waveguide system, radio frequency generator, accelerator guide, Klystron or Magnetron, therapy sofa, crane bridge or arch, magnet, computer, therapy equipment for different conditions. |
| Operation | A linear accelerator uses microwave technology (similar to that used for radar) to accelerate electrons in a waveguide, then allow these electrons to collide with a heavy metal target to produce high-energy X-rays. These high-energy X-rays are shaped as they exit the machine to conform to the shape of the patient's tumor and the customized beam is directed at the patient's tumor. The beam is usually formed by a multi-plate accumulator or shooter that is integrated into the head of the machine. The patient lies on a moving treatment couch and the laser is used to ensure that the patient is in the right position. The therapy sofa can move in many directions including up, down, right, left, in and out. The beam exits from a part of the accelerator called the gantry, which can be rotated around the patient. Radiation can be delivered to the tumor from several angles by rotating the jack bridge and moving the treatment couch. |
| Common Problems | • MLC (multi-plate collector or propeller) motors • Adjust the power from time to time • target cable • Ion tube • LEDs |
| Manufacturers | • Varian Medical Systems • Elekta AB • Accuray Incorporated |
| Sources | • Saudi Food and Drug Authority Document • ECRI • Radiologyinfo.org • Varian Medical Systems |
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