I was just wondering if anyone knows the effective range of the Pulse for the Radioactive Dinos?

I just recently tamed a 180 Radioactive Hyaenodon (this was a pain without a Ghillie Suit).
I have already figured out you have about 1.2ish Foundations worth of clearance before you or your dinos need radiation protection.
And that once you activate the pulse, you can not Cryo/Soul-Trap the dino till the pulse cooldown wears off.

But I have yet to figure out the range of the pulse.
I am assuming it is pretty small, seeing as my Dinos about 6~7 Foundations away seemed unaffected the first time I pulse the Hyaenodon. And I would test further, but it is going kinda slow with the ~30 minute cooldown between pulses.