Learning Goal: Photon Scattering - Compton Effect (Figure 1) An X-ray photon scatters from a free electron at rest at an

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Learning Goal Photon Scattering Compton Effect Figure 1 An X Ray Photon Scatters From A Free Electron At Rest At An 1 (17.91 KiB) Viewed 46 times

Learning Goal: Photon Scattering - Compton Effect (Figure 1) An X-ray photon scatters from a free electron at rest at an angle of 175° relative to the incident direction.

X Photon Scattering by Electron - Compton Effect E = hf E' = hf h (photon's momentum) 2 ' Before After 2-=-(1-cos) (Compton effect) -1- Before mc h 2.43x10-2m mc After . EE KE = E is between 0° and 180° ө

Part A If the scattered photon has a wavelength of 0.320 nm , what is the wavelength of the incident photon? Pay attention: in the formula which is the wavelength of the incident photon, which is for the scattered photon. Keep 3 digits after the decimal point. Unit in nm. 1nm = 10^9 m ΡΕΙ ΑΣφ o ? of incident = nm Submit Request Answer Part B Determine the energy of the incident photon. Note: here the unit for energy is keV = 1000 eV, since 1 eV = 1.6x 10-19 J, 1 keV = 1.6% 10-16J Keep 3 digits after the decimal point. D ΟΙ ΑΣΦ ? E of incident photon = keV Submit Request Answer

Part C Determine the energy of the scattered photon. Similar instruction to the part above. VO ΑΣΦ ? Eof scattered photon = keV Submit Request Answer Part D Find the kinetic energy of the recoil electron. Note: here the unit for energy is eV. Round the result to an integer. ΟΙ ΑΣφ 圖]? KE of the recoil electron = eV Submit Request Answer