Radiation Attenuation

I = I_0·exp(-mu_a·x)

What it says

How much radiation survives passing through a thickness of shielding.

Symbol	Quantity	Dimension
`I`	Transmitted intensity (W/m^2)	`M T^-3`
`I_0`	Incident intensity (W/m^2)	`M T^-3`
`mu_a`	Linear attenuation coefficient (1/m)	`L^-1`
`x`	Thickness (m)	`L`

Enter what you know. No account needed.

I_0 — Incident intensityW/m^2mu_a — Linear attenuation coefficient1/mx — ThicknessmI — Transmitted intensityW/m^2

Fill in all but one: I_0, mu_a, x, I are all empty.