They were talking about it on Times Radio this morning, and apparently it is available in the hospitals where it was first developed (London I think).
It puts me in mind of my next door neighbour who had a lumpectomy and struggled with radiotherapy so much they ended up doing it less often and for a longer time period. This would be a real help for people like her.
One of the reasons they put forward for the slowness of progress was that radiotherapy departments see a lot of women with breast cancer so it would need a massive change to the system, as well as the cost of new equipment (and presumably training) for use in the operating theatres. But surely this would free radiotherapy up for other cancer patients and reduce the spend in the long terms 