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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/074/04/0563-0574

    • Keywords

       

      Thick target bremsstrahlung photons; solid-state effects; double differential cross-sections; Monte-Carlo simulation.

    • Abstract

       

      We present new experimental data on thick target bremsstrahlung spectra generated from the interaction of energetic electrons with bulk matter. The ‘photon yields’ in terms of double differential cross-sections (DDCS) are measured for pure elements of thick targets: Ti ($Z = 22$), Ag ($Z = 47$), W ($Z = 74$) and Pt ($Z = 78$) under the impact of 10 keV electrons. Comparison of DDCS obtained from the experimental data is made with those predicted by Monte-Carlo (MC) calculations using PENELOPE code. A close agreement between the experimental data and the MC calculations is found for all the four targets within the experimental error of 16%. Furthermore, the ratios of DDCS of bremsstrahlung photons emitted from Ag, W and Pt with those from Ti as a function of photon energy are examined with a relatively lower uncertainty of about 10% and they are compared with MC calculations. A satisfactory agreement is found between the experiment and the calculations within some normalizing factors. The variations of DDCS as a function of Z and of photon energy are also studied which show that the DDCS vary closely with Z; however, some deviations are observed for ‘tip’ photons emitted from high Z targets.

    • Author Affiliations

       

      Namita Yadav1 Pragya Bhatt1 Raj Singh1 V S Subrahmanyam1 R Shanker1

      1. Department of Physics, Atomic Physics Laboratory, Banaras Hindu University, Varanasi 221 005, India
    • Dates

       
  • Pramana – Journal of Physics | News

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