[填空题]
A cyclotron with a radius of 1.0 s((/xsr 9cwo mm is to accelerate deb1iedgb3dy vy/ hk4cu,9wbl45 lt i ((uterons ($^2\text{H}$, mass $= 2.014$ u) to an energy of 12 MeV.
(a) What is the required magnetic field?$\approx $ T
(b) What frequency is needed for the voltage between the dees?$\simeq $ Hz
(c) If the potential difference between the dees averages 22 kV, how many revolutions will the particles make before exiting?$\approx$ $\ \text{revolutions}$
(d) How much time does it take for one deuteron to go from start to exit? $\Delta t$ = $ \times 10^{-6}\ \text{s}$
(e) Estimate how far it travels during this time. distance = m
