<qa>  What is the goal of the Phase I study?One way to potentially overcome this challenge is to deliver a more intense dose of radiation treatment to the tumor over a shorter amount of time. Stereotactic Body Radiation Therapy SBRT is a technique that treats the prostate with fewer treatments and can decrease the effect of radiation to the surrounding tissues. This study is a Phase I research study, which means that it will look at the safety of the dose of the SBRT. While SBRT itself is a standard of care method to administer radiation therapy, there has not been a specific dose outlined in the past. The aim of this study is to determine the dose that will treat the prostate cancer but cause the least amount of side effects. 