Abeam of 5.5 mev protons with a current of 10 ampere and a cross sectional area of 5 cm impinges on the hand of an operator. the mass stopping powers for a 5.5 mev proton in tissue p=1 g cm) are: scal/p=73.4 mev cmg' sq/p=0.0455 mev cm g! what is the dose rate to the skin of the hand where the beam impinges? 2.6e+10 rad hit 1.6e+7 radh 4.6e+3 rad h? 7.3e+6 radh 2.6e+4 rad 1