@scary1 I would agree with others that IMRT might be the better option; by telling you that 2 years of ADT are necessary, the RO is intimating that the cancer could be in the nodes and surrounding area already even if scans are negative.
Yet, he is only targeting the gland?? Doesn’t make sense.
Your husband should probably go on Orgovyx right away to arrest any growth/spread while you get a second opinion.
Remember, all radiation is cumulative; it all adds up no matter what! Laymen think that 5 huge blasts are really more powerful; but 25 or more, in smaller doses, add up to the same killing effect.
Five sessions of ‘X’ amount of radiation is equal to 25 lesser sessions of the same total amount.
But it’s where that dose goes that really matters.
You need the nodes treated as well, IMO.
Phil