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Photonuclear cross-section / Compton scattering cross-section

Photonuclear cross-section / Compton scattering cross-section

Item no.: P2524615

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Principle

The radiation of 137Cs and 22Na is measured with a scintillation detector and the energy spectrum determined with a multi channel analyzer. The fractions of the spectra caused by Compton scattering and those caused by the photoelectric effect are determined on the basis of their areas. The results are used for determining the ratio of the effective cross-sections and examining its energy dependence.

Tasks

  1. Measurement of the g-spectra of 22Na and 137Cs, using a scintillation detector.
  2. Determination of the ratio of the specific effective cross-sections due to the Compton effect and the photoelectric effect in photons having energy values of 511, 662 and 1275 keV.

 

What you can learn about

  • g-radiation
  • Interaction with material
  • Photoelectric effect
  • Compton effect
  • Pair formation
  • Detection probability
  • Scintillation detectors
Document     Filesize
p2524615e.pdf Experiment guide, English 809.76 KB

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