Radiation vs. Ablation

Can anyone please let me know whether radiation or ablation for pancreatic cancer is proven to be more effective? I have asked my Dad’s medical oncologist and radiation oncologist to compare them for effectiveness, and wasn’t give a straight answer…actually the radiation oncologist straight up said he didn’t know which is better for this. I think ablation for this is fairly new where we are (Toronto). We want to do either radiation or ablation after a few rounds of chemo…have to decide very soon!! Any success stories for either are highly appreciated. Thank you🙏🏻!