Answer to Question #284416 in Atomic and Nuclear Physics for Ihtesham ullah

Question

Indicate which of the three major interaction processes

(photoelectric absorption, Compton scattering, pair production) is

dominant in the following situations:

(a) 1MeV gamma rays in aluminum.

(b) 100 keV gamma rays in hydrogen.

(c) 100 keV gamma rays in iron.

(d) 10 MeV gamma rays in carbon.

Answer 1

Solution:

(a) 1MeV gamma rays in aluminum $\implies$ Compton effect  

(b) 100 keV gamma rays in hydrogen $\implies$ Compton effect  

(c) 100 keV gamma rays in iron $\implies$ Photo electric effect  

(d) 10 MeV gamma rays in carbon $\implies$ Compton effect