Radiation Energy Deposition



A photon enters the volume with an energy of 17.95 MeV. The primary photon's energy is converted to mass via pair production, creating an electron with 9.65 MeV of kinetic energy and a positron with 7.28 MeV of kinetic energy. The first pair production electron loses 3.58 MeV in collision interactions and then exits the volume. The first pair production positron loses 2.86 MeV in collision interactions and then exits the volume. The figure above depicts the particle paths. What are the following radiation energy deposition quantities, in MeV?

Energy Transferred (E_{tr}): MeV
Net Energy Transferred (E_{net}): MeV
Energy Absorbed (E_{abs}): MeV