Our Experience of Betatron Therapy

Supervoltage Therapy: A review of Present Day Facilities and Techniques

“…By a link mechanism between the machine and the treatment couch the source of x-ra'ys is made to move round this couch in a path which is circular relative to the patient, so producing the same effective movements a,s are achieved with the smaller 15 to 18 >rev Betatron. Setting up is facilitated greatly thereby, and in spite of its size the machine has been proved a very practical therapeut,ic instrument (Bellion and Lovera 1958).…”

“…10). The residual level depends on the production of Bremsstrahlung by the electrons and amounts to some IO0/, for a 20 3fev electron beam (Bellion and Lovera 1958). The initial high level depends on the fact that the rate of loss of energy does not vary greatly with the speed of the electrons (though is influenced also by scattering).…”