• Scattering and absorption differential cross sections for double photon Compton scattering

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/057/04/0733-0741

    • Keywords

       

      Double photon Compton scattering; scattering and absorption cross sections; coincidence spectra; coincidence events

    • Abstract

       

      The scattering and absorption differential cross sections for nonlinear QED process such as double photon Compton scattering have been measured as a function of independent final photon energy. The incident gamma photons are of 0.662 MeV in energy as produced by an 8 Ci137Cs radioactive source and thin aluminum foils are used as scatterer. The two simultaneously emitted photons in this process are detected in coincidence using two Nal(T1) scintillation detectors and a slow-fast coincidence set-up of 30 nsec resolving time. The measured values of scattering and absorption differential cross sections agree with theory within experimental estimated error.

    • Author Affiliations

       

      B S Sandhu1 M B Saddi1 B Singh1 B S Ghumman1

      1. Physics Department, Punjabi University, Patiala - 147 002, India
    • Dates

       
  • Pramana – Journal of Physics | News

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