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Mr LoganC
Mr LoganC is offline
Mar6-12, 11:23 PM
P: 19
1. The problem statement, all variables and given/known data
Calculate the Doppler velocity needed to compensate for the recoil energy.

2. Relevant equations
[itex]V=\frac{E_{0}}{m c}[/itex]

3. The attempt at a solution
I found the recoil energy to be [itex]1.95\times10^{-3}[/itex] eV.
And for Iron-57, [itex]E_{\gamma}[/itex] is 14.4KeV. Which is approximatly equal to [itex]E_{0}[/itex].
So just plugging these values into the above equation, I get 81.27m/s which seems a bit high, as many articles site around 10mm/s!

Perhaps units I am using should be in something else? Or maybe I am using the completely wrong equation?
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