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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/070/04/0633-0641

    • Keywords

       

      Photon interaction; 241Am; gamma ray attenuation; Compton scattering; absorption edge; rare earth elements.

    • Abstract

       

      We have carried out photon attenuation measurements at several energies in the range from 49.38 keV to 57.96 keV around the K-absorption edges of the rare earth elements Sm, Eu, Gd, Tb, Dy and Er using 59.54 keV gamma rays from 241Am source after Compton scattering from an aluminium target. Pellets of oxides of the rare earth elements were chosen as mixture absorbers in these investigations. A narrow beam good geometry set-up was used for the attenuation measurements. The scattered gamma rays were detected by an HPGe detector. The results are consistent with theoretical values derived from the XCOM package.

    • Author Affiliations

       

      K K Abdullah1 N Ramachandran2 K Karunakaran Nair2 B R S Babu3 Antony Josephm3 Rajive Thomas3 K M Varier3

      1. Department of Physics, Farook College, Calicut 673 632, India
      2. Kingstree Sr. High, 616 Martin Luther King Avenue, Kingstree, South Carolina, USA
      3. Department of Physics, University of Calicut, Calicut 673 635, India

    • Dates

       
      Published
      April 2008
      Manuscript received
      9 September 2007
      Accepted
      20 November 2007

  • Pramana – Journal of Physics | News

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