Radiotherapy Radiation Physics: A Monte Carlo Approach by David W O Rogers is licensed under CC BY-NC-SA 4.0
The hope is that eventually this page will give access to the entire book.
In the meantime I am providing access to chapter 7, entitled "Monte Carlo". It is available here
This page, which will link to more of the book as time goes on, has a doi of https://doi.org/10.22215/frw/m24101