Typically, some platinum based chemo accompanies the radiation as a radio-synthesizer that improves the performance of the radiation treatment. It can also be given to help "mop up" any microscopic stray cancers so there are at least two reasons why chemo is done along rads.

Cisplatin and carboplatin are the most common chemos offered during rad treatment. One big bag every three weeks and smaller weekly dosage is also an option.

Personally, I would fee more UNcomfortable that chemo is not part of the radiation treatment. Check it out some more if you of the "hit it hard NOW" philosophy camp. If anything, rads are usually dialed down or out when someone young gets cancer as it permits more options in the event of cancer returning later. don