Welcome to this forum. You will find lots of good help and support here.
You might want to use the search utility on this site and do a search on IMRT. There are many members that have had this kind of radiation and there has been quite a bit of discussion about the pros and cons, etc.
My own husband had conventional radiation - IMRT wasn't available at the rural hospital where he was treated.
Wishing you the best as you make your way through this.
Anita