Types of radiotherapy equipment covered by the guide include external beam radiotherapy machines (both Cobalt-60 and linear accelerators), brachytherapy devices that apply radiation sources directly to tumours and complementary imaging devices such as conventional or computed tomography (CT) simulators, as well as other tools essential for safe operation and quality control. Depending on the type of radiotherapy machine, the need for specialized professionals and infrastructure, as well as quality assurance and maintenance, may vary.