Hi Shae
Thankyou for opening up this discussion. While we wait for others to respond, I found a similar recent discussion for you to read Partial Breast Radiotherapy | BCNA Online Network
Also while I am sharing information, have you watched our webcast? Radiotherapy's role in treating DCIS and early breast cancer
I have also included Cancer Council’s https://www.cancer.org.au/assets/pdf/understanding-radiation-therapy-booklet which is a guide for people with cancer, their families and friends.
We hope the above info and other member responses will help support you in discussing with your treating team.