Once the therapy decision has been made (and reviewed if necessary), the radiation target area has been defined, and all the necessary preparations have been made, the actual treatment can begin..
As a patient, you may be pleasantly surprised. The most demanding procedures are already behind you, and the actual radiation treatment is much simpler and takes much less time. However, several radiotherapy sessions are generally necessary, usually one session a day. While proton therapy can be performed on an outpatient basis, it always requires a certain period of time. How long a period depends on the size and type of the tumor.