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Abstract <p>For the first time, we have measured the flux-weighted average yields of (γ, α) reactions on targets of natural osmium and iridium for a bremsstrahlung beam with a cutoff energy of 55.5 MeV. Theoretical calculations including an α-particle preproduction factor of ~10<sup>–2</sup> provide a satisfactory description of experimental data. It has been established that at photon energies below 55 MeV, nonstatistical mechanisms of charged particle emission predominate.</p>

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Studying Photonuclear Reactions with Emission of α Particles on Natural Osmium and Iridium

  • 期刊论文

  • 发表日期：

    2026年7月31日

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  • M. V. Zheltonozhskaya,
  • A. A. Kim,
  • P. D. Remizov,
  • A. P. Chernyaev,
  • V. V. Khankin,
  • M. N. Yusupov

摘要

Abstract

For the first time, we have measured the flux-weighted average yields of (γ, α) reactions on targets of natural osmium and iridium for a bremsstrahlung beam with a cutoff energy of 55.5 MeV. Theoretical calculations including an α-particle preproduction factor of ~10–2 provide a satisfactory description of experimental data. It has been established that at photon energies below 55 MeV, nonstatistical mechanisms of charged particle emission predominate.