This is a strange question, can you explain the connection between photons and resistance?

Steven Sesselmann first, I'm at fault for not clarifying more. in petroleum engineering we have what is called logs that we take for wells and two of these logs are the Gamma ray log (measure emitted radiation) and resistivity log (measure resistivity of the rock)

so, my question is there a physics-based equation that relate these two readings or i have to make my own empirical correlation.

Mohammed,

If I understand correctly, you are looking for the gamma ray attenuation coefficients for various solids, is that correct?

Herre is a calculator with some different materials, but it does not give the formula.

https://web-docs.gsi.de/~stoe_exp/web_programs/x_ray_absorption/index.php