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Study of the isomeric ratios in photonuclear reactions of natural Selenium induced by bremsstrahlungs with end-point energies in the giant dipole resonance region

Abstract

We have determined the isomeric ratios in 74Se(γ, n)73m,gSe and 82Se(γ, n)81m,gSe photonuclear reactions of natural Selenium induced by bremsstrahlungs with end-point energies in the giant dipole resonance region. The investigated samples were irradiated at electron accelerator Microtron MT-25 of the Flerov Laboratory of Nuclear Reaction, Joint Institute for Nuclear Research, Dubna, Russia. The gamma spectra of the samples irradiated were measured with spectroscopic system consisting of 8,192 channel analyzer and high-energy resolution (180 keV at gamma ray 1,332 keV of 60Co) HP(Ge) semiconductor detector Canberra. The GENIE2000 (Canberra) computer program was used for data processing. The results were discussed and compared with those of other authors.

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Correspondence to Tran Duc Thiep.

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Thiep, T.D., An, T.T., Khai, N.T. et al. Study of the isomeric ratios in photonuclear reactions of natural Selenium induced by bremsstrahlungs with end-point energies in the giant dipole resonance region. J Radioanal Nucl Chem 292, 1035–1042 (2012). https://doi.org/10.1007/s10967-011-1604-y

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  • DOI: https://doi.org/10.1007/s10967-011-1604-y

Keywords

  • Photonuclear reaction
  • Isomeric ratio
  • GDR region
  • Reaction yield
  • Intake impulse