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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/067/03/0501-0506

    • Keywords

       

      γ-rays; γ attenuation; simulated mixed absorbers; effective atomic numbers; rotating absorber; XCOM

    • Abstract

       

      The total γ-ray interaction cross-sections on mixed absorbers were determined at 662 keV with a view to study the effective atomic numbers for γ-ray absorption under narrow beam good geometry set-up. The measurements were taken for the combination of metallic absorbers like aluminium, copper, lead and mercury and also for the simulated absorbers by rotating the targets. ORTEC HPGe and NaI(Tl) detectors were used for detection of γ-rays. The experimental results compare favourably with theoretical values derived from XCOM package and suggest the usefulness of the concept of effective atomic numbers and the utility of the rotating absorbers technique.

    • Author Affiliations

       

      K Karunakaran Nair1 N Ramachandran2 K K Abdullah3 K M Varier4

      1. Department of Physics, MES College, Ponnani - 679 586, India
      2. Department of Physics, MPMMSN Trust College, Shoranur - 679 523, India
      3. Department of Physics, Farook College, Calicut - 673 632, India
      4. Department of Physics, University of Calicut, Malappuram - 673 635, India

    • Dates

       
      Published
      September 2006
      Manuscript received
      1 March 2005
      Manuscript revised
      20 April 2006
      Accepted
      23 June 2006

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