Novalis TX Radiosurgery

Some articles on radiosurgery:

Gamma Knife - History
... Radiosurgery was first developed at the Karolinska Institute of Stockholm, Sweden in 1949 ... In 1968, they developed the Gamma Knife, a new device exclusively for radiosurgery, which consisted of radioactive sources of Cobalt-60 placed in a kind of helmet with central channels for irradiation ... A linear accelerator (LINAC) may also be used to deliver radiosurgery ...