Electrons generated by the Compton effect inside a carbon block (graphite) have an initial kinetic energy of 20MEV. Using the table below, the approximate range of electrons in carbon (in cm), the total energy deposited in the medium (in MeV) and the average stopping power (in MeV/cm) are, respectively: Note: carbon density is 2250kg/m and factor B=0.0790 to 20MEV. () 27.81; 10.02;0.16 () 5.41; 14.90; 2.78 () 1.22; 25.81;2.96 () 16.21;11.63; 1.52 () 4.44; 18.42;4.14 Stopping Powers for Electrons Stopping Powers for Electrons LEAD (chumbo) ZINC (zinco) Kinetic Collision Radiative Kinetic Collision Radiative Energy Stp. Pow. Stp. Pow. Energy Stp. Pow. Stp. Pow. MeV MeV cm2/g Mev cm2/g Mev cm2/g Mev cm2/g MeV 1.000E+01 1.201E+00 1.206E+00 1.000E +01 1.450E +00 5.860E-01 1.250E+01 1.226E+00 1.535E+00 1.250E +01 1.476E+00 7.550E-01 1.500E+01 1.246E+00 1.870E+00 1.500E+01 1.497E+00 9.276E-01 1.750E+01 1.262E+00 2.210E+00 1.750E+01 1.514E+00 1.103E+00 2.000E+01 1.277E+00 2.554E+00 2.000E+01 1.529E+00 1.280E+00 2.500E+01 1.299E+00 3.252E+00 2.500E+01 1.553E+00 1.640E+00 3.000E+01 1.318E+00 3.961E+00 3.000E+01 1.572E+00 2.005E+00 3.500E +01 1.332E+00 4.678E+00 3.500E+01 1.588E+00 2.373E+00 4.000E+01 1.345E+00 5.402E+00 4.000E+01 1.601E+00 2.744E+00 4.500E+01 1.356E+00 6.132E+00 4.500E+01 1.613E+00 3.118E+00 5.000E+01 1.365E+00 6.865E+00 5.000E+01 1.623E+00 3.494E+00 5.500E+01 1.374E+00 7.603E+00 5.500E+01 1.631E+00 3.872E+00 6.000E+01 1.381E+00 8.345E+00 6.000E +01 1.639E+00 4.251E+00