Thread: Mossbauer Effect in Iron-57 View Single Post
 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 $V=\frac{E_{0}}{m c}$ 3. The attempt at a solution I found the recoil energy to be $1.95\times10^{-3}$ eV. And for Iron-57, $E_{\gamma}$ is 14.4KeV. Which is approximatly equal to $E_{0}$. 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?