BBCNEWS Click June 4, 2024 19:37:00
And they stop within the tumour and do not go any further. x—rays dont stop and so they damage the healthy tissue both in front and behind the tumour. and that means that this form of radiotherapy can be used in really tricky parts of the body. we can often use protons in cases which would be very difficult to use more conventional treatment where we are going very close to an organ which is radio sensitive. for example, something like the brainstem which we know is very sensitive to radiation...
Source: archive.org