1) [math] 50nC \times 120Hz \times \frac{1\cdot e^-}{1.6\cdot 10^{-19}C} = 0.375 \cdot 10^{13} \frac{e^-}{sec} [/math]
2)[math]10^{-3} \frac{\gamma 's/MeV}{e^-/r.d.l.}} \times 2 \cdot 10^{-4} radiation lengths \times 15 MeV \times 9.4 \cdot 10^{12} \frac{e^{-}}{sec}=2.8 \cdot 10^{7} \frac{\gamma}{sec}[/math]