That sounds pretty typical Bill. I had a raspy voice and occasional ear aches and sore throat off and on for over a year. My doctor actually sent me to a Pulmonary doctor, when I was so short of breath I could barely get around,who scoped my lungs and "on the way out" saw that my throat was almost totally closed.
My Onco/Rad said he gives IMRT for some types of cancer but for mine it is XRT. They did explain to me however that the machine they use has "sleeves" in it that conforms to the shape of the area being radiated. Some may know what its called but I can't remember. I had surgery first and then 33 rads.
Hopefully the one you go for will be the winning one. That is all we can hope for.
Blessings,
Barb~