For a little while. what s a little while? it depends. you have to plan to get four separate areas. it could be an hour and a half. you re planning in between each particular phase of the radiation. it s a commonly done thing. but again it is probably claustrophobic. and you ve got to sit there for some time. i ve heard from some people whose parents have gone through this that it can change your personality for a time. yeah. when you re thinking about radiation to the brain, oftentimes you re thinking about radiation to the whole brain. because you re assuming there s cancerous cells to the brain. that s the type of thing that s most often associated with changes in personality, changes in mood. that could happen here as well. but it sort of takes all these beams and focuses them on this one area. the goal is to provide the most radiation to the areas of ....