2015 Med Phys I Lecture 3.1d(1) PreTest Question Title * 1. Name: Question Title * 2. In Compton scatter, photons scattered more than ___ never have energies greater than 0.511 MeV. 45 degrees 90 degrees 180 degrees It doesn't matter, as scattered photon energy is dependent upon the incident energy. Question Title * 3. If an incident photon has a slight, glancing impact with an electron, which statement about the scattered photon energy and the scattered electron energy is true? The photon energy and the electron energy are at a maximum The photon energy is at a maximum and the electron energy is at a minimum The photon energy is at a minimum and the electron energy is at a maximum The photon energy and the electron energy are at a minimum Question Title * 4. In which of the following limiting cases is the Compton scattering cross section dependent on energy? Low energy High energy, 0 degrees High energy, 180 degrees Small angle Question Title * 5. Which of the following is true for Compton scatter with a very high energy incoming photon (if we ignore grazing hits): Most of the energy of the photon goes to the ejected electron Most of the energy goes to the scattered photon The energy of the scattered electron and photon differ greatly depending on the angle of scatter Question Title * 6. Which statement regarding the Compton effect is false? It involves an interaction between a photon and an electron. It is dependent of atomic number It decreases with increase in energy In each collision some energy is scatterd and some transferred to an electron, the amount depending on the angle of emission of the scattered photon and the energy of the photon Question Title * 7. Are there any issues that are not clear to you at this time? Done