What is fuel areal density and how does it relate to density?

[Aroman90]

Hey guys,

I was wondering if anyone could explain what "fuel areal density" means, I'm reading up on fusion and this keeps popping up.

I know that the units for it are mass over area (g/cm^2) but confused to how this is related to density.

Thanks ahead,
AR

 

[tiny-tim]

Welcome to PF!

Hey Aroman90! Welcome to PF!

Sometimes the word "density" is used to mean an amount per length or per area instead of the usual per volume …

I haven't actually come across "areal density" before, but it seems to be just mass per area.