​Radiation therapy that is administered at a distance from the body is known as…

➤ What machines deliver teletherapy?
Linear accelerators (LINAC) are the most common teletherapy machines. Other external-beam systems include cobalt-60 units, tomotherapy, CyberKnife, and proton beam therapy. Advanced techniques like IMRT, VMAT, and IGRT improve dose conformity and spare healthy tissue. Choice depends on tumor location, required precision, and available technology at the treatment center.