Oh yes...and i forgot to add that the specs of the xray machine (like most AC usage specs) most likely are stating the absolute worst case power requirement and most generally consume power at a more conservative level.
I wrote to Bill directly, but will post to the group.
"Momentary" power is specified with some generator units.
Kohler's diesel 10 kW gen set supplied 300% rated current for up to 10 seconds.
Generac did not give a spec.
So.... your mileage varies!
Kim