@lifutang
Try to give you, my experience. The number of treatments has changed over the years. You can have high dose radiation and less treatments. Or low dose and extended treatments. The high dose is usually over 5 days where low dose can be 20/30/ or more depending on your R/O.

Your R/O will probably have a preference for high dose or low dose. You also should have the option. The success rate for high dose and low dose is practically the same. What my PCP is passing on is that the statistics are showing an increase in side effects of those getting the high dose.

Regarding proton. All radiation treatments have gone through upgrades and updating. When you hear proton just remember the radiation does enter the body a full dose, releases it's full dose at predetermined spot, AND does not exit body. It is why those who chose proton radiation as it possibly can reduce radiation damage to surrounding organs and tissues as does not exit the body.

When you hear photon just remember enters body full dose, targets the locations set up, AND continues to exit the body. I hope you can see the major difference. Again, the success rate for both is identical.

I had 30 rounds of proton radiation at UFHPTI. It is a medical institution who has been doing proton radiation treatments since 2006 and is ultra-modern. My R/O did not like the high dose reduced number of days. His research and feedback from patients showed a higher rate of increased side effects with high dose 5 day programs. He has done thousands of radiation treatments.

Mayo Jacksonville did not have proton radiation, only photons. They wanted to do 20 rounds of radiation using SBRT. I chose proton at UFHPTI as any chance to reduce radiation damage to surrounding organs and tissues I wanted to do.