第三章单元测试
- Electron detectors detect the energy spectrum of an electron emitted by the decay of a radionuclide X as shown below. This indicates that the nuclide X is radioactive. The physical processes corresponding to structures c, d, and e in the figure are . （ ）
-
（ ）
-
（ ） - The interaction mechanism between gamma rays and atom of medium includes: （ ）.
- When Compton scattering is occurred between gamma ray and extranuclear electron, if the energy of incident photon is 2MeV, then the minimum energy of scattered photon is （ ） MeV.
A:
B:
C:
D:
答案:
A:Compton edge, backscattering peak, the full energy peak B:backscattering peak, Compton edge, the full energy peak C:the full energy peak, Compton edge, backscattering peak D:Compton edge, the full energy peak, backscattering peak
A:2.526 B:0.234 C:0.511 D:2.76
A:Electron pair effect B:Ionization C:Photoelectric effect D:Compton scattering
A:1.7734 B:0 C:2 D:0.2266
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