I think there needs to be a way for users to switch off charts themselves without being on the CT or radiographic filtered html pages. If a user has left the plotting switched on, and selected a plot of dose over time with a timeperiod of "days" there may be a very long wait before results come up.
I think it would be a good idea to have a link on the home page that will enable the user to switch plots off.
@Ed McDonagh, I think I can implement this fairly easily. If you would like me to do it, where on the front page would you like the link to appear?