Linear attenuation coefficient for gamma ray attenuation

[adamworth]

Homework Statement

I have data for the count rate (of gamma rays) against the thickness of various materials (Al, Pb, Fe etc...).

I want to work out the linear attenuation coefficient. Can I do this by plotting the natural log of count rate against thickness? I don't have values for "intensity".

Homework Equations

I = I₀e^-ux

The Attempt at a Solution

 

[kuruman]

Can I do this by plotting the natural log of count rate against thickness?

Yes. Be sure to make separate plots for each material. You don't need "Intensity" to figure out μ. Just plot the ratio C/C₀ that is the ratio of counting rate at a given thickness to the counting rate without any absorber.