    
 
1. Calculate the energy of a 1173 keV gamma-ray photon after Compton scattering through
90º:
No, this is not correct.
Yes, this is correct.
No, this is not correct.
2. Calculate the energy of a recoil electron if a 1173 keV gamma-ray
photon is Compton
scattered through 90º:
No, this is not correct.
No, this is not correct.
Yes, this is correct.
3. Which of the three interaction processes is dominant in the following situations:
(use the
figure here...)
(i) 1173 keV gamma-rays in lead:
No, this is not correct.
Yes, this is correct.
No, this is not correct.
(ii) 60 keV gamma-rays in lead:
Yes, this is correct.
No, this is not correct.
No, this is not correct.
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