As a general comment, Tomo Therapy is not necessarily a better alternative for every given situation. eg, some facilities that have it available do not always use Tomo in every application.
Especially for someone interested in radiation and hormone treatment, I always suggest reading the book by Lee Nelson MD. His book is very comprehensive, and covers various treatments, outcomes, lifestyle changes, diet, supplements etc. The other reason for suggesting this book is that the author is a PC survivor who used radiation and hormone treatment for his PC some years ago.