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Isomeric ratios in photonuclear reactions of molybdenum isotopes induced by bremsstrahlung in the giant dipole resonance region

  • Physics of Elementary Particles and Atomic Nuclei. Experiment
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Abstract

We have determined the isomeric ratios of isomeric pairs 97m,gNb, 95m,gNb and 91m,gMo produced in 98Mo(γ, p)97m,gNb, 96Mo(γ, p)95m,gNb and 92Mo(γ, n)91m,gMo photonuclear reactions in the giant dipole resonance (GDR) region by the activation method. The results were analyzed, discussed and compared with the similar data from literature to examine the role of excitation energy, neutron configuration, channel effect and direct and pre-equilibrium processes in (γ, p) photonuclear reactions. In this work the isomeric ratios for 97m,gNb from 14 to 19 MeV, for 195m,gNb from14 to 24 MeV except 20 and 23.5 MeV and for 91m,gMo at 14 and 15 MeV are the first time measurements.

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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 & Bui Minh Hue

  2. Flerov Laboratory of Nuclear Reactions, JINR, Dubna, Moscow oblast, 141980, Russia

    A. G. Belov, O. D. Maslov, G. V. Mishinsky & V. I. Zhemenik

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  1. Tran Duc Thiep
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  2. Truong Thi An
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  4. Nguyen The Vinh
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  5. Bui Minh Hue
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  6. A. G. Belov
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  7. O. D. Maslov
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Correspondence to Tran Duc Thiep.

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Thiep, T.D., An, T.T., Cuong, P.V. et al. Isomeric ratios in photonuclear reactions of molybdenum isotopes induced by bremsstrahlung in the giant dipole resonance region. Phys. Part. Nuclei Lett. 14, 102–111 (2017). https://doi.org/10.1134/S1547477117010241

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