1334 / 1544
➔
“
A logical extension of multiple beam therapy
is to use 1 beam, have it directed
towards the tumour, and cause the machine
to rotate
about an axis through the tumour,
or keep the machine fixed and rotate the patient about this axis …”
➔
When the radiotherapist
was limited to the use of 250 kV X-rays
, it was very difficult to
get enough radiation into an internal tumour … As a result many workers developed
rotation techniques
…”
PDD, 6MV photon
Nothing new…