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I'm trying to find the range of α-particles in silicon; I can work out the stopping power, [itex]\frac{dE}{dx}[/itex], but the reference I'm using then states that I need to integrate it as follows:

[itex]R=\int_T^0 ([/itex]-[itex]\frac{dE}{dx} ) ^{-1} dE[/itex]

The thing is, I'm not sure as to how to even start this integration, can anyone help?

I can actually look up the value using the page below to calculate it, but I'd like to check it by doing it myself.

http://physics.nist.gov/PhysRefData/Star/Text/ASTAR.html

Also this page gives the units of range in g/cm^{2}, can anyone explain why it's this and not just cm or m? I've seen in other places where g/cm^{2}and cm seem to be interchangeable, so if it gives the range as 7.375x 10^{-03}g/cm^{2}, can I just use it as 7.375x 10^{-03}cm?

Many thanks!

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# Range of alpha particles in a silicon detector

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