Radiation dose in Joules/Kilogram, so is Gravitational Potential
https://www.researchgate.net/post/The-formula-for-radiation-dose-of-an-x-ray-unit-D-gkVmAs-d2-where-g-is-constant-and-ddistance-in-what-kind-of-dose-does-it-refer-to Not sure if this will add to your discussion, but Volt^2 might be easy to remember if you think of dosage in Photons per second, an Ampere of unit charge as (1/e = 6.2415091E18 per second) and energy in Watt seconds. Watts = Volts*Amperes = Volts^2/Ohm. The total absorbed dose in Joules/Kilogram is Watts*Seconds/Kilogram.
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