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Study of the isomeric ratios in photonuclear reactions of natural holmium and lutetium induced by bremsstrahlungs with endpoint energies in the giant dipole resonance region

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Abstract

We have determined the isomeric ratios in 165Ho(γ, n)164m,gHo and 175Lu(γ, n)174m,gLu photonuclear reactions of natural holmium and lutetium induced by bremsstrahlungs with end-point energies in the giant dipole resonance (GDR) 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 8192 channel analyzer and high-energy resolution (180 keV at gamma ray 1332 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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Acknowledgments

This study has been performed at the Flerov Laboratory of Nuclear Reaction, Joint Institute for Nuclear Research, Dubna, Russia. The authors would like to express sincere thanks to the Chemical Department of the Flerov Laboratory of Nuclear Reaction for providing the measurement system. The financial supports from the Vietnam National Foundation for Science and Technology Development (NAFOSTED) are highly appreciated.

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Authors and Affiliations

  1. Institute of Physics, VAST, 10 Dao Tan St., Ba Dinh Region, Hanoi, Vietnam

    Tran Duc Thiep, Truong Thi An, Phan Viet Cuong & Nguyen The Vinh

  2. Flerov Laboratory of Nuclear Reactions (JINR), Dubna, 141980, Moscow Region, Russia

    A. G. Belov

Authors
  1. Tran Duc Thiep
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  2. Truong Thi An
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  3. Phan Viet Cuong
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  4. Nguyen The Vinh
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  5. A. G. Belov
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Correspondence to Tran Duc Thiep.

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Thiep, T.D., An, T.T., Cuong, P.V. et al. Study of the isomeric ratios in photonuclear reactions of natural holmium and lutetium induced by bremsstrahlungs with endpoint energies in the giant dipole resonance region. J Radioanal Nucl Chem 290, 515–524 (2011). https://doi.org/10.1007/s10967-011-1257-x

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