Absorption of β-radiation

[Twothreeten]

I recently had to do an experiment to show how aluminium absorbs β-particles from a strontium source. I was wondering, does the distance between the source and the aluminium sheet affect the absorption if the Geiger tube is the same distance from the strontium?

[insane_alien]

why don't you do some experiments and find out.

[Klaynos]

I belive that the absorbtion wont be effected but your detection might be flawed due to scattering from the aluminium...

[Twothreeten]

Thanks, I'll look into those ideas.