Hi!
It’s been a few years, thankfully, that I had rads, and have forgotten much! You might want to check with your doctors before stopping! The tumor has to go through certain phases before it’s possibly eliminated such as the S phase, G1, G2, etc, not necessarily in that order, but don’t quote me lol. Radiation in fact works less after the 4th week or so, but takes the 7 weeks for it to fully work or 5-6 weeks with excelerated radiation. Longer is not better, after 7 weeks, but for some reason, even if there is a delay in treatment, they have you complete the full amount, 7 weeks. Another factor is not the total weeks, but keeping the treatment package under 100 days for optimal results.
Twice I didn’t complete my radiation treatment as outlined. Once was due to being in the hospital for several days, and then missing several days due to the power outage, which they tacked on a 6th day, and had you finish a week later too.
I hope this helps