@again2 Did you lie on a table and a large device scanned over and around you? If so, then you did have external beam radiation (EBRT) which refers to an external source of radiation to a prescribed area of your body. I had 25 rounds of this while lying on a table.

Internal radiation refers to brachytherapy where a device is placed inside the vagina and applied directly to the area of concern (in my case a section of my vaginal cuff). I had 2 rounds of brachytherapy.

Does this answer your question? And yes, you might ask your oncologist when you see him at your next appointment.